[Q] Safe mode/ debugging problems - Eee Pad Transformer General

Ok, so it is already 7/8 times in 2 months that I have to fully wipe my TF because it did not boot anymore and was stuck at ASUS logo screen.
Everytime I had to wipe it, reapply rooting and restore last backup (and I always loose something).
I am thinking that is a software problem: some applications create problem to filesystem or system files so that it will not boot anymore.
Is there some sort of safe mode while booting to identify what is stopping the boot process?
Or is there some way to investigate the problem after it happens?
Thank you
Chris

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i9506 blue screen problem

hello!
some time ago i talked with my s4 (for 1+ hour)and charged the same time and phone started reboot randomly.
i have tried flashing other FW, bootloader and recovery - no help. tried to update to lollipop.
after that i broke screen (you may understand why).
changed it
Now i tried flashing stock 4.4.2 FW, recovery and csc, but cant get even into recovery, i always get blue screen.
Is there any way to revive my phone? can't find any information about bluescreen at all. is my hardware dead?
Download mode works (only it).
update: twrp recovery works now, i am able to mount usb storage to pc with no problem, tried to copy backup to phone memory-blue screen again. something wrong is with memory. what is possible to do with this?
update2: phone is working. installed stock lollipop, random reboots and sometimes blue screen again. don't know what to do more. please help anybody
update3: internal storage lost. twrp show internal storage 0B. unable to flash kernel or anything else.
never mind. mainboard is probably dead

Stuck on encryption lock screen, won't boot PLEASE HELP

Hey everyone,
So my phone died and then I got it charged and turned on and it booted up to the encryption lock screen where it says to start up your device, enter your pin. So I enter my pin and then its says, "verified" and then "starting android". and then a padlock appears on the screen, it opens, and there's like a load up circle going around it. At first, I let the phone sit to see if it would do anything but after an hour, I figured something is wrong. I dont know why this happened, I think I might have accidentally turned on the secondary encryption, but this really sucks, I don't want to have to factory reset and lose all my pictures and data. I can boot into recovery mode but sometimes when i turn it on it shows a screen that says installing update and has like a google ring looking thing that should be spinning around but it looks like its glitching out, after that screen it will go to a no command screen, and then it will eventually reach recovery mode. I really hope someone can help or knows what is going on because, I really dont want to lose all my stuff.
Thanks for your time
I tried posting link but im new, if you look up s7 edge frozen encryption, its the first link , another person describes the same issue.
I had this issue. In recovery, tell it to clear the delvic cache. Then try a reboot.
It too a few attempts before the phone would not boot directly into recovery. But once i got it to do a normal boot, it started normally.
Then after it's running, back it all up, boot into recovery, and do a system restore.
Hi I wonder if anyone can help me. I restarted my phone, it asks for my pin which I enter correctly. It then gets stuck on spinning padlock. I've tried a soft reset (I think that's what it's called, holding down power and volume keys). It restarts, I enter pin, it says starting android then gets stuck again. I'm not very tech minded (typical girl). Can anyone help. I'd rather not lose all my photos and apps. Thank you so so much in advance. Toni x
I am facing the same issue, but with a Samsung Galaxy S8.
- Safe mode: doesn't boot
- Recovery mode: works, clear cache doesn't solve the problem.
So since nothing worked to make it work (except the Factory Reset, but I didn't tried this option), I decided to wait in the padlock screen. After 3 hours the phone started.
I guess that the phone is decrypting some big file during startup. Indeed, some days before before this problem happens, I downloaded some big files via torrent (~2-4 GB video files).
I'll delete these files and make some tests to understand the source of this problem.
Have same issue after recent update, tried clearing cache and safe mode but didn't help, been on padlock for about 10 hours now, any solutions/experiences?
ps: on stock rom with stock recovery, no root or anything of that sort at all.
Have exactly the same issue..Please help
After recent update, tried clearing cache and safe mode but didn't help, been on padlock for about 10 hours now, any solutions/experiences?
ps: on stock rom with stock recovery, no root or anything of that sort at all.

i9505 unable to stay on

Hey everyone, I recently got an i9505 that...Is unable to boot and stay on. It doesn't get past the splash screen and reboots itself, the only way to let it stay on is booting in recovery mode or download mode. I tried flashing various Odin packages and PITs, but nothing changed, except for the fact that before it wasn't able to boot in recovery, while now it is. I tried booting with another battery, but the result is the same, and the problem isn't the power button since it doesn't reboots while in recovery or in download mode. Any suggestions to make this old thing work again? Thanks in advance and sorry for my bad English.
Hi,
Start by booting into recovery mode. Then clear the cache, after restore factory settings. Reboot the phone and give it 10 to 20 min to boot.

Yotaphone 2 - Unusual boot symptom affecting the screen

Hello,
I'm currently facing some really unusual problem (we are talking about Yotaphone 2)
Once the device reaches the Android logo boot state the screen is starting to get pixelated, and it stucks there.
I have tried factory reset, flashing another ROM, data wipe, everything. I can successfully reach the recovery menu, everything seems to be fine there (I can swich options, etc) but once I try to boot into the system, this strange behaviour starts to happen.
I have really no idea what might be the root cause of this issue
Edit: I've attached an image
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Motorola C Plus stuck on boot.

Hello, I got a Moto C Plus that's stuck on the LENOVO logo, formatting it is not an option since I still need some data inside of it. The device is encrypted, it boots normally and allows me to put the first password, during the second boot process it gets stuck on the LENOVO logo, If I use ADB I can see the device and it appears as connected but I can't access anything on it. Is there a way I can boot temporarily on a recovery/boot ROM or anything of the sort to take everything out then format it normally? Any advice would be appreciated.
Pulling out data ( user and/or system related ) - what only can get achievd via ADB - requires Android is rooted, requires encryption gets removed before by a Factory Reset what in turn wipes all user-data and removes all user-apps, resets system apps to their initial sate.

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