Question Huawei P Smart 2021 shutting down after unlocking the screen

[berke8357]

Hi! My gf is having this issue with her phone and we have tried some steps to solve it with no avail. To explain the issue in more detail, her phone shut downs after unlocking the screen but stays on as long as the screen is locked. After unlocking the screen, it only stays on for a few seconds. We tried:

• Booting the phone in safe mode
• Restarting the phone through the 'restart' button in the EMUI screen
• Locking the screen immediately after unlocking to see if it still shut downs (in the hope that we would be able to quickly give permission for usb file transfer and recover the files while the screen is locked)
• Clearing the cache partition.

None worked and the phone ended up shutting down each time. She needs to recover her files and we don't know what to do now.

 

[VidJunky]

Welcome to Android Central forums. Sorry to hear about your issue.

Just a few follow up questions.

Has she gotten a new device? I ask because I'm curious if this is why she is replacing this one? If not what prompted replacement?

How long has this been happening? In the past was there something you were able to do to work around this that stopped working? Like, it used to do this but we could restart the phone and it would be OK, or if we unlocked it and went straight into an app it would be OK, If we held it upside down while powering it on...

Have you taken it to a service center, like UBreakIFix, where they may be able to tell you if your battery is healthy? The disturbing thing is that it happens in Safe Mode and it is only 3 years old. This would make it unlikely to be an installed app since most won't or can't run in Safe Mode, and being such a young phone would tend to count out the battery but we don't know how it's been treated. With the back cover being sealed you can't really do a battery pull but it used to be possible on some devices to simulate this by pressing the volume up or down, usually the opposite of what you do to access the bootloader, and power button at the same time. The phone usually cycles a couple times and they you release and try to start it normally.

First HTC used to have a similar issue and oddly what worked for that was booting without the SIM card. It sounds odd and if I hadn't had to do it myself I would be skeptical too.

You already cleared the partition cache which is another thing that can help a system corrupting issue. After that would be factory resetting the device but I know you have hopes of saving the data on the device.

I can't think of anything else at the moment.