Starting with Windows 8.1, a software tool, SleepStudy, became available as an inbox component in all Windows PCs that implement the modern standby power model. SleepStudy can measure modern standby performance with minimal impact. Details on the report's contents can be found below.
As time goes on, it only becomes more likely that your password will be hacked – putting your most personal information at risk. By taking a few steps to enhance your password, you can exponentially minimize the risk of a breach. Oct 25, 2020 The first time you use Decipher Backup Browser you will see a screen called Getting Started that explains how to allow Backup Browser to access your iPhone’s backup. To grant Decipher Backup Browser access to iPhone backups on your Mac, go to System Preferences. Mar 20, 2021 Decipher Screen Time helps you see what apps your child is using on an iPhone/iPad/iPod. We show you an overview of what apps are being used and when the device and those apps are being used, without a flood of invasive information. Decipher Screen Time helps you see what apps your child is using on an iPhone/iPad/iPod. We show you an overview of what apps are being used and when the device and those apps are being used, without a flood of invasive information.
Watch this video to learn how to use SleepStudy to find and fix components that cause unexpected battery drain.
Tracking system activity and battery drain during modern standby can be difficult because the tracking itself can cause unnecessary activity and battery drain. For example, traditional disk-based logging has the unwanted side effect of causing excessive battery usage when the disk is activated for logging. In contrast, the SleepStudy tool is designed to avoid generating activity that could interfere with the modern standby performance that it measures.
The most detailed way to measure power consumption during modern standby is to use an instrumented system, which is a physical system that has power measurement leads connected to every major hardware subsystem of interest. However, testing to this level of detail is not practical in many cases because of engineering cost, and systems that have already been sold to customers typically cannot be tested in this way.
The SleepStudy tool provides overview information about each modern standby session. This information includes the active time, the idle time, and the power consumed. A session starts when the system enters the modern standby state, and ends when it exits this state.
SleepStudy also provides first-level information about the causes of activities that occur during each modern standby session. This feature allows for easy investigation of long-running activities.
Battery Information: Each SleepStudy report concludes with information about the system battery configuration. In addition to name and manufacturer, this information includes battery size and design capacity. The battery size and design capacity are particularly important for SleepStudy because they are taken into account when estimating modern standby battery life.
In some cases, the capacity ratio will exceed 100 percent. This is expected and will change over time as the battery chemistry changes.
For more information about running SleepStudy and interpreting the results, please reference the following videos:
Running SleepStudy
The SleepStudy tool runs from a Command Prompt window and is simple to use. SleepStudy outputs an easy-to-read HTML report.
Decipher Screen Time Free
To run SleepStudy, open a Command Prompt window as Administrator and enter the following command:
In response to this command, the built-in powercfg.exe command-line tool creates an HTML file named Sleepstudy-report.html in the current working directory.
Advanced Options
By default, the SleepStudy report covers the last three days of system operation. To change the duration covered by the SleepStudy report, use the powercfg.exe tool's /duration option. With this option, you specify an additional parameter, which is the number of days (up to 28) that the SleepStudy report covers.
For example, to generate a SleepStudy report for the last seven days of system operation, open a Command Prompt window as Administrator and enter the following command:
For more information about powercfg.exe, see Powercfg command-line options.
SleepStudy Reports supporting TShell
You can also generate SleepStudy reports on mobile images that support TShell: connect to TShell, navigate to writeable directory in data partition (eg. 'cd c:data')
Run the following command:
Copy sleepstudy-report.xml that is generated in the local directory to the host machine.
Run the following command:
Sleep study traces are automatically generated on mobile for screen off sessions longer than 10 minutes and are maintained for the last 7 days. The reports contain the last 3 days, by default, but can be extended with the '/duration' flag.
Report Details
Beginning in 20H1 on Modern Standby systems, the SleepStudy report is organized as a series of (state)[modern-standby-states.md] changes--primarily Active, Screen Off, and Sleep states. Therefore, while an overall modern standby session is defined as one instance of the screen turning off and back on again, the SleepStudy report will break this down into the time spent quiescing the system (the Screen Off state), and the time spent in its long term low power state (the Sleep state). Prior releases will just show details for the overall Modern Standby session.
For each state, an overview is provided at the top of the report with a hyperlink to its detailed section in the HTML report.
The SleepStudy report also contains:
- Static configuration information about the hardware platform, its operating system installation, and firmware version.
- A graphical view of the usage trend over the last 72 hours.
- A summary table of each state segment, which includes:
- Start time, end time, and duration.
- Power source (AC or battery power).
- Battery power consumed and average power consumption.
- Each Screen Off session includes additional detailed information:
- The information contained in the summary table.
- Any blockers that prevented the system from quiescing immediately to enter sleep.
- Each Sleep session includes additional detailed information:
- The information contained in the summary table
- The five most active components ('top offenders') in the modern standby session. The information shown for each component includes the component type, name, and device path (if applicable).
- A histogram chart of idle time.
- Information about the system battery configuration, including design capacity and cycle count.
The remainder of this topic describes a sample SleepStudy report, and explains how to interpret the report and understand the information that it contains.
System information
Every SleepStudy report begins with basic system information, which includes system name and firmware version. This information is essential because changes to the operating system, firmware, and BIOS can have significant impact on modern standby battery life.
Usage trends
Every SleepStudy report includes a graphical view of system usage that includes modern standby periods.
The graph is color-coded. Green, orange, and red segments correspond to low, medium, and high system activity, respectively.
The default period that the graph covers is three days.
The graph consists of dotted, solid, and no-line segments, which indicate AC power, battery power, and system-off periods, respectively. The following graph legend is included with each SleepStudy report.
Summary information
Each SleepStudy report includes a table that summarizes the modern standby sessions that are evaluated in the report.
Each row in the summary table contains information about one state of a modern standby session. The rows in the summary table are color-coded to identify sessions that could be investigated for improvement.
Color coding
Beginning in 20H1 with the seaparation of Modern Standby sessions into Screen Off and Sleepstates, colors for a row in sleep study reports are based on a few main rules:
- If the session is less than 2 minutes, no detailed data is shown.
- If it's a Screen Off session, then it is colored Green, since most screen off sessions are expected to be very short.
- If it's a Sleep session, then it is colored Grey, since there is no information to determine if it's a good or bad session based on drain or time spent in DRIPS.
- If the session is 2 minutes or greater, then both Sleep and Screen Off sessions will be colored according to the following drain and DRIPS % thresholds.
- For Screen Off sessions, this is:
- Red indicates that the drain rate is >= 1% per hour
- Yellow indicates that the drain rate is between .33 and 1% per hour
- Green indicates all other cases
- For Sleep sessions, this is:
- Red indicates that the DRIPS rate is <80% or the drain rate is >= 1% per hour
- Yellow indicates that the DRIPS rate is between 80-94% or the drain rate is between .33-1% per hour
- Green indicates all other cases
- For Screen Off sessions, this is:
- If there is a red child blocker, then the parent session will be colored red as well. Clearly incorrect third party child blockers will be colored purple.
By design, some sessions are active (red rows). But most sessions can be expected to reflect low activity and low power (green). The color scheme is designed to make potential high-drain sessions easy to identify. You should be most concerned about long sessions (of several hours) that show high sustained battery drain—these sessions have the most impact on the battery.
Legacy color coding
Prior to 20H1, the color coding for each overall modern standby session is based on a combination of the drain rate and the deepest runtime idle platform state (DRIPS) rate (percent low power). The color is determined by the worst performance of either drain rate or DRIPS rate, according to the following rules:
- Red indicates at least one of the following:
- The DRIPS rate is < 80 percent.
- The drain rate is >= 1 percent per hour. (If the drain rate is >= 1 percent per hour, the modern standby battery life will be at most four days.)
- Orange indicates at least one of the following:
- The DRIPS rate is between 80 and 94 percent.
- The drain rate is between 0.333 and 1 percent. (If the drain rate is under 0.333 percent, the platform will achieve 12+ days battery life in modern standby.)
- Green indicates all other cases.
Drain rate calculation
SleepStudy calculates drain rate by using remaining capacity information that is provided by the platform battery and charging subsystem. The battery capacity, in milliwatt-hours, is recorded at the start and end of each SleepStudy session. The battery capacity information is provided by the platform through the ACPI _BST control method under the battery device object in the ACPI namespace.
List of summary information
The summary table includes the following basic information (from left to right):
- The session number (left column) starts with one, and increments for each session that is reported during this period. The default report period covers the last three days.
- START TIME (local time) is shown in YYYY-MM-DD HH:MM:SS format. Additional sessions on the same day do not repeat the year-month-day information.
- DURATION, in hours:minutes:seconds, of the modern standby session. This duration time covers the approximate period between the transition to screen off and subsequent transition to screen on.
- ENERGY CHANGE shows the number of absolute milliwatt-hours (mWh) that are consumed and the relative percentage of the battery's last full-charge capacity. A session in which no change occurs in remaining capacity is indicated by a hyphen (-), as shown in session 6 in the summary table in the preceding example.
- ENERGY CHANGE shows the number of absolute milliwatt-hours (mWh) that are consumed and the relative percentage of the battery's last full-charge capacity. A session in which no change occurs in remaining capacity is indicated by a hyphen (-), as shown in session 6 in the summary table in the preceding example.
- CHANGE RATE, in milliwatts, and AC (Charge) or DC (Drain) power source indicator. The change rate is calculated by dividing the ENERGY CHANGE value by the DURATION value.
- % LOW POWER STATE TIME shows the DRIPS rate and (if applicable) hardware DRIPS as the percentage of time in which the SoC resides in the lowest power state (DRIPS). Hardware DRIPS (denoted by HW: preceding the residency percentage) is available on Intel and Qualcomm SoC-based Windows PCs only.
Overall modern standby sessions of less than ten minutes are not tracked by the SleepStudy report. To measure modern standby performance, overall session durations should be greater than ten minutes. Longer periods (more than one hour) are reflective of real user experience.
Energy change is not tracked for AC sessions (indicated by the Charge keyword under CHANGE RATE). This information is captured in other reports, such as the report that the powercfg/energy command generates, because energy policies that are used when the platform runs on AC power are different from the policies that are used when the platform runs on battery (DC) power. In general, these policies are less strict and allow for different use cases. Every row in the summary table is a hyperlink to per-session details that are presented in the SleepStudy report.
Session details
A per-session details section of the report starts by repeating the session information from the summary table.
The table can show the following types of offenders:
- Fx Device. A device that has a driver that implements support for the Windows power framework (PoFx). Typically, this type of device resides on the SoC itself.
- Activator. A software component that can keep the system active to perform valuable work during modern sleep. (In the preceding example, the name BI identifies the broker infrastructure, which is a Windows software component that coordinates background task execution.)
- Networking. A networking subsystem device or component.
- Processor. CPU active time that occurs outside of an activator being enabled.
- PDC Phase. Time that is spent in the different phases of entering or exiting modern standby-- this is most applicable to Screen Off states. Please see Prepare software for modern standby for more information.
- Other. Includes miscellaneous tracking information. For example, CPU utilization outside of an enabled activator is listed under TYPE as Other.
Each component in the Top Offenders table is color-coded by activity time. If it is over ten percent busy, the row is highlighted in red. If the component is between five and ten percent active, it is colored orange. Otherwise, the component row is highlighted in green.
See also
To prevent others using some certain applications and features, many people prefer to block the access by using 'Restrictions'. You can call it as 'Parental Controls' as well.
For instance, you can hide in-app purchase, location service and other features with a restrictions passcode. Therefore, you can unlock them only you enter the right restrictions PIN (Personal Identification Number).
But what if you forgot restriction passcode? Well, it means you are disallowed by your iPhone or iPad either. To solve this problem, this article mainly introduces how to recover forgotten restrictions passcode quickly.
Part 1: Recover or Remove Restrictions Passcode (Easiest)
The easiest way to fix the forgotten restriction passcode is to recover or remove it. For making it, you will need the third-party software, Apeaksoft iOS Unlocker.
Apeaksoft iOS Unlocker is the easy unlocker to get into the locked iPhone when your iPhone is locked, because you forgot the screen-lock passcode, Screen Time restriction password or Apple ID password. Only 2 steps, it can unlock the iOS device by removing those restrictions.
Recommendation- Remove and recover Screen Time restriction password on iPhone iPad iPod.
- Wipe screen-locked iPhone from 4-digit, 6-digit, customized number and code.
- Remove Apple ID when you forgot Apple ID account or password.
- Compatible with all iOS devices like iPhone 12 Pro Max, 12 Pro, 12 mini, 12, 11 Pro Max, 11 Pro, 11, XS, X, 8, 7, 6s, 6, iPad Pro, iPod, etc., running in iOS 14/13/12/11 and before.
This short tutorial below shows you how to recover or reset the Screen Time restriction passcode when you forgot it on iPhone.
Step 1. Free download Apeaksoft iOS Unlocker from the download link above. Run this software and initiate the window to select Screen Time mode.
Meanwhile, get the USB cable to plug your iPhone into the computer.
Step 2. Click the Start button and this software will start removing Screen Time restriction passcode immediately.
Then you can create a new passcode or use Screen Time without any passcode.
Tips :1. iTunes is required for scanning your device. Make sure iTunes is installed with the latest version on your computer.
2. If your iPhone is running iOS 11 or earlier and the iTunes backup is not encrypted, the program can recover your restrictions passcode. If your iTunes backup has been encrypted, you need to decrypt the backup first and then recover the password.
3. For iPhone running in iOS 12 and later, this software will remove the Screen Time password directly.
Part 2: How to Reset Restriction Passcode when You Forgot
If you set a restrictions password before, and you just forgot the restrictions passcode on iPhone or iPad, then you can use iTunes to solve this problem. You had better back up iPhone before resetting restrictions passcode. Otherwise, you may lose some latest iOS data.
There are two things you need to know if you forgot restrictions passcode and want to reset it.
The first thing is that it does not work if you hit 'Erase All Contents and Settings'. You will still be required to provide your Apple ID passcode and restriction passcode, even though you forgot restriction passcode on Apple products already. Another thing you need to do is to turn off 'Find My iPhone', or you will fail to remove the forgotten restriction passcode.
Step 1. Turn off 'Find my iPhone'
Open 'Settings' and tap your profile on iPhone or iPad. Click 'iCloud' button. Scroll down to turn off 'Find My iPhone' option. You will be asked to enter Apple ID password, and then choose 'Turn off'.
Step 2. Launch iTunes and connect iPhone to computer
Use a lightning USB cable to connect iPhone to computer. Launch iTunes and your iPhone will be detected automatically. Make sure your iTunes has updated to the latest version.
Step 3. Restore iPhone to factory settings
Click 'Summary' in the left panel. Press 'Restore iPhone' button. Confirm to restore iPhone to its factory settings. After that, iTunes will start downloading the latest iOS and restore iPhone immediately. Now you can use those applications again even though you forgot restrictions passcode.
Part 3: Recover Restriction Passcode with iBackupBot (Forget Restriction Passcode)
When you forget restriction passcode, you can also try recovering it without restoring iPhone, iPad or iPod touch. Just use following method to find back forgotten restrictions passcodes. Do not forget to back up iPhone before recovering restrictions passcodes beforehand. After that, you can reset a new restrictions passcode without computer as usual.
Step 1. Launch iBackupBot
Download and install iBackupBot on your Windows or Mac computer. Launch iBackupBot, it will detect all your backup files automatically, so you need to wait for a while.
Step 2. Open iBackupBot file
After completing iPhone scanning, you can see a folder with your iPhone's name. Unfold it and select 'System Files Folder'. Choose 'HomeDomain' from the list. Open 'Library' folder, and then locate 'Preferences' folder in the left panel. Right click 'com.apple.springboard.plist' to open it with Wordpad or Notepad.
Decipher Screen Time Free
Step 3. Recover a forgotten restrictions passcode
SBParentalControlsPIN
1234
Copy and insert it to the pointed place just as the picture shows below. Save this file and then close it. Use a USB cable to connect iPhone to computer. Later, you can right click your iPhone icon to restore from the backup with iBackupBot.
Surely, you do not have to recover restrictions passcode, but get another option to reset iPhone restriction password directly.
Part 4: Reset Restriction Passcode with PinFinder (Forget Restriction Passcode)
PinFinder is another restriction passcode resetting tool which can help you reset a Forgotten Restrictions Passcode without Restoring. Now you can take the next steps to fix the issue.
Step 1. Download PinFinder and install with iTunes
Launch iTunes and connect iPhone to computer with a USB cable. Back up your iPhone in advanced. Moreover, disable 'Encrypt iPhone Backup' option. Download the latest PinFinder on your Mac or PC. Double click PinFinder icon to run the program.
Step 2. Recover a forgotten restrictions passcode on computer
Right click the 'Start' button and then select 'Command Prompt'. Press 'Return' on your keyboard. Now you can recover your forgotten restrictions passcode for iPhone quickly. It is on the right side of 'Backup Time'.
Screen Time Microsoft
Part 5: Use iOS Restriction Passcode Cracker when you forget Restriction Passcode
iOS Restriction Passcode Cracker is an online restrictions passcode extractor which can help you deal with the forgetten restriction passcode problem.
Step 1. Extract RestrictionPasswordKey and RestrictionPasswordSalt
Remember to back up iOS data in advanced. Download and install iPhone Backup Extractor app on your computer. Open it and hit 'Read Backups' button in the lower left corner. Select your latest iTunes backup file, and click 'Choose' to continue. Scroll down to tap 'iOS Files' and then hit 'Extract' button. Open 'com.apple.restrictionpassword.plist' with 'Text Editor'. You can find it after choosing 'Library' and 'Preferences'. Now you can find the target information in details.
Step 2. Unlock iPhone and reset restrictions passcode
Open iOS Restrictions Passcode Cracker site with your browser. Copy and Paste numbers of RestrictionsPasswordKey and RestrictionsPasswordSalt. Hit 'Search for Code' and wait until iOS Restrictions Passcode Cracker find the correct restrictions PIN. Though it may take you a long time to recover a restrictions passcode, you do not have to factory reset iPhone actually.
Best iPhone/iPad/iPod data recovery you may want to know:
If you forgot to backup iPhone before factory resetting, just as you forgot restrictions passcode before, then you can use Apeaksoft iPhone Data Recovery to solve the problem. There are 3 data recovery methods that you can recover data from iPhone/iPad/iPod touch selectively.
- Recover up to 19 kinds of data from any iOS device directly
- Restore data from iTunes backup to computer
- Download and extract iCloud backup to output lost data
- Preview and scan lost iOS data before recovery
- Highly compatible with the latest iOS 14 and iPhone 12/12 Pro/12 Pro Max/12 mini
As a result, you can reset a new restrictions passcode even if you forgot restrictions passcode on iPhone, iPad or iPod touch. Later, you can add or remove applications to adjust restrictions on Apple devices easily.
Part 6: FAQs of Restrictions Passcode
1. What is an iPhone restrictions passcode?
An iPhone restrictions password or passcode is a numeric series of digits that you set up when you enable the restrictions feature on your iPhone. Each time you need to access the restrictions settings and wish to configure it, you need to enter the passcode.
Decipher Screen Time App
2. How do I reset restrictions passcode on iPhone?
The easiest way to Reset Restrictions Passcode on iPhone is to simply erase the Passcode from your device by performing a Factory Reset on your iPhone. Note that a Factory Reset will erase all the data on your iPhone
3. What to do if I forgot the screen time passcode on my iPhone?
First, you can try possible or default screen time passcode. If this way not works, you could find the reliable software that allows you to remove the Screen Time passcode from your iPhone.