DEAD with blue LED - Lenovo Vibe Z2 Pro Questions & Answers

Hi, i need your help. My k920 just went dead with blue LED. ive tried flashing STOCKrom uing QFIL and was successful, but still same problem when booting.
things ive done:
1. flash stock rom - problem still occurs on booting
2. unlock bootloader with TWRP- - problem still occurs on booting
3. flash TWRP recover - problem still occurs on booting
4. removed the battery, and reconnect again after 10 minutes. - problem still occurs on booting
really need your help.
k920 ROW kitkat

Same Problem
I'm having the same problem with my Lenovo K920.
Does anyone have a fix for this.
i would also appreciate any help given.
Thank you.

mquinto28 said:
Hi, i need your help. My k920 just went dead with blue LED. ive tried flashing STOCKrom uing QFIL and was successful, but still same problem when booting.
things ive done:
1. flash stock rom - problem still occurs on booting
2. unlock bootloader with TWRP- - problem still occurs on booting
3. flash TWRP recover - problem still occurs on booting
4. removed the battery, and reconnect again after 10 minutes. - problem still occurs on booting
really need your help.
k920 ROW kitkat
Click to expand...
Click to collapse
Not sure if your phone fixed?
I faced the same problem this afternoon but i managed to fix it with QFIL with ROW + Chinese modem file (Yeah, I am having CN edition)
I still stuck with 5.0.2 now but is ROW instead of CN ROM.
i failed to fastboot flash recovery twrp.img as always hit "Waiting for Device"
I also failed to get into bootloader too

mquinto28 said:
Hi, i need your help. My k920 just went dead with blue LED. ive tried flashing STOCKrom uing QFIL and was successful, but still same problem when booting.
things ive done:
1. flash stock rom - problem still occurs on booting
2. unlock bootloader with TWRP- - problem still occurs on booting
3. flash TWRP recover - problem still occurs on booting
4. removed the battery, and reconnect again after 10 minutes. - problem still occurs on booting
really need your help.
k920 ROW kitkat
Click to expand...
Click to collapse
I have the same problem as well with only blue LED lighting up and also did all the steps you did. It started with random reboots, then the blue screen reboot and now just the blue LED. Even with power plugged in it doesn't seem to be charging either. Anyone have any ideas?

mquinto28 said:
Hi, i need your help. My k920 just went dead with blue LED. ive tried flashing STOCKrom uing QFIL and was successful, but still same problem when booting.
things ive done:
1. flash stock rom - problem still occurs on booting
2. unlock bootloader with TWRP- - problem still occurs on booting
3. flash TWRP recover - problem still occurs on booting
4. removed the battery, and reconnect again after 10 minutes. - problem still occurs on booting
really need your help.
k920 ROW kitkat
Click to expand...
Click to collapse
Try getting the hardware checked.

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Touchscreen problem - On first touch reboot

Hello, for abou two months I have installed the JDC AOSP firmware on my phone. I encountered many faults and bugs on this rom, and the best of all was the sd corrupt and the last days wasn't even opening. When i touched the screen it was rebooting, so i decided to go back on officiak firmware. I installed two different official firmwares but still the problem remains. On the first touch it reboots. What could possibly go wrong? thank you
Maybe a power button issue?
Does the phone reboot by itself in download or recovery mode?
audit13 said:
Maybe a power button issue?
Does the phone reboot by itself in download or recovery mode?
Click to expand...
Click to collapse
no it was by the little papers i have placed on sim card due to common problem on galaxy s4 "sim card removed". But now there is more important isue. The phone yesterday suddenly turned off and since then it doesn t boot on. It is stuck on galaxy logo and also it is not booting in rocovery mode. I have tried and installed via odin official firmware again it says pass, also today i have installed CWM but still none of these problems solved. Is there anything we can do?
What did you do after installing cwm? Factory reset?
I would use twrp as a custom recovery because cwm has not been updated for a long time.

WEIRD/PECULIAR RESTART SCENARIO in my S5 GM 900F

Hi Guys,
I am facing a peculiar kind of problem in my phone (G900F) since yesterday.
What happens is that, if I tried
i) To restart my phone from the phone (reboot menu), the phone stuc in boot screen and then vibrate twice then after 5-10 sec the phone start rebooting all along once again with 2 vibration and this process keeps repeating until I pull out the battery.
ii) To access recovery (both hard- key combination or from reboot to recovery option in phone), the phone reboots and it stays in the initial screen for about 45 seconds and then the screen went black and freezes there until I pull out the battery.
iii) To access download mode ( both hard- key combination and reboot to download mode option in phone), there seem no problem.
The weirdest part is that, if I remove the battery for 5-10 min and re-insert the battery and do any of the above options; the phone reboots and i get the home screen loaded successfully with no problem . I can also get into my recovery after this 5 mins switch off just like the above. I also found the phone lags a bit in this home screen.
I almost did all the combination to get off this problem (stated below) but I keep getting this problem again and again.
I was in Sixperience v 3.1 with Pheonix Kernel v 10 and Philz CWM recovery and tried the below to try to fix the issue
1. Re-flashed Kernel from Recovery (Also, tried to re-flash kernel after uninstalling Xposed but no use)
2. Re-flashed Modem and Bootloader from ODIN once again (G900FXXU1CPF7_BL_G900FXXU1CPB8_MODEM_LTE.tar)
3. Reflashed ROM once again as a fresh install through Philz recovery.
4. Restore the cwm backup from recovery (which was backed up a week before.)
5. Flashed Samsung Stock MM ROM (G900FXXU1CPFH_G900FPHN1CPFD_PHN.tar.md5) as a fresh install.
After this stock ROM installation is done, the phone struck at SAMSUNG flashing logo and the blue LED keeps glowing for more than 30 mins)
Nothing works. ? Any idea on what is to be done to fix this issue? I am not sure, what i did but this problem keeps coming even after trying of all of the options since yesterday.
Please help to with your expertise.

Nexus 6p Bootloop issue

Hi Xda,
My device was working normally till today as it start to suddenly freeze and boot loops , every time it did that i flash recovery from boot-loader and boot to recovery and flash rom and it works after that normally and that repeated again and again ... does that mean i'm going into bootloop of death issues ? or it can be any other problem ?
Any help would be appreciated .
BR,
A.helmy said:
Hi Xda, My device was working normally till today as it start to suddenly freeze and boot loops , every time it did that i flash recovery from boot-loader and boot to recovery and flash rom and it works after that normally and that repeated again and again ... does that mean i'm going into bootloop of death issues ? or it can be any other problem ?
Any help would be appreciated .BR,
Click to expand...
Click to collapse
Sounds like a hardware issue (BLOD) but you won't know until you wipe the device PROPERLY and flash a stock ROM. One way to do this is to install a full Google image using flash-all.bat. Your situation is precisely why Google posts full images with instructions on the same page on how to restore your device to it's "out of the box" state. If after flashing stock your phone is still bootlooping and/or you cannot access Recovery mode (ADB), then you're done. Either RMA the phone if eligible, or find a replacement.

blue screen problem even after flashing

So umm! My phone has ran into this problem in which my phone gets the bluescreen and keeps restarting! I tried flashing the stock rom via stock recovery but that doesnt help me either! When i flash these roms in the middle of flash itself the bluescreen reappears and then reboots. Any solution? Because i find this as software conflict!

SM-N910F Blackscreen after flash / Odin = Pass - looking for help

Hello community,
A good friend of mine asked me to support him with his "bricked" Note 4.
I tried now for a few hours (usually im experienced with stuff like that) without any success.
Downloadmode is accessable. Odin (3.09) says most of time 'pass'.
I flashed the following stock roms:
N910FXXU1DRI2_N910FOXA1DRI1_DBT_(Germany) [We are from germany] 1 File.
Odin tells me: pass, Phone reboots in recovery mode, installs a system update, processbar filled half, "earasing", reboot into recovery and display stuck on black after retry to install a system update.
I already tried to debrick - after reflash the PIT file, the Note4 stuck in the Note4 Splashscreen with a blue LED blinking but nothing more happens. [Debrick XDA Thread] (should it?)
I tried also the N910FXXU1ANK4_DBT_4Files Firmware but same behavior (black screen after system update - the phone must turned on since the power button doesnt react - I need to pull of the battery for reboot).
Any hint for me what Im doing wrong? This devices drives me crazy ...
Is the device hardware broken maybe? What do you guys think?
Thank you for reading
Best regards
/nepixl
Have you tried to install a custom recovery instead first?

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