Database Info

Lenovo K4 Note (A7010). Won't power up. How to recover?

Ok so, I flashed a CM13 rom on a K4 Note (16GB internal and 3GB ram version). I pretty much followed all the steps required for flashing - unlocked bootloader - installed TWRP - wiped (factory reset) - flashed the Rom. Now, the phone booted up alright and worked for a day. The phone doesn't belong to me, and the owner decided that he wanted to factory reset it one more time. Since I also wamted to show him how TWRP functions, I booted into recovery via the advanced boot option in Cyanogen (Did not use the key combination). So this phone turns off and decides not to start. I waited for some time and decided to manually power it up. It won't. I held down the key for about 5 minutes and yet, to no avail. Not even a vibration. No response at all.
So, I would like to understand what happened with the phone, since as far as I can tell, TWRP was working fine. I used the key combo method to boot into TWRP thrice the night before - to flash CM, to flash gapps and to flash thr xposed installer. I can say CM was working fine since I used it for a night to get a hold of any bugs. Nothing went wrong at that time.
So, what can I do now? Since the phone is completely unresponsive and is not being detected upon being connected to the PC, I suppose it's hard bricked. But what cause the brick in the first place? Any possibe way to recover the phone? Is it even hard bricked though?

What about battery charging % frist chik battery I think battery fult
Sent from my GT-I9505 using Tapatalk

Nah, it doesn't charge either. I tried plugging it in and turning it on. It still won't.
It's just sitting there. Doing nothing.

S7 G930F stuck in boot after auto update

Hello Guys,
You are my last hope. I’m trying to fix a S7 which fall down but worked fine after this happened. Then Samsung made an auto update and after this the phone doesn’t start anymore.
I tried several things. First I flashed a stock firmware via Odin without any success. Then I saw that the FRP lock was active and "shortly" unlocked it via the bypass method from user tungkick. After that I installed TWRP and tried out several firmware’s and custom roms.
The only minimal success I had, was with the Hydra Rom which I flashed exactly afterwards the manual. After trying several time the devices started until the point "android starting....apps get opened....
After 45 minutes with no change I abort the process and shut down the device.
I tried to flash it at beginning with the back cover and after it without to check if there is any loose cable (what I haven’t done up to now).
I also noticed, that the phone disturb my wireless keyboard while stuck in boot. After put away the phone from computer the keyboard woks fine again. Maybe this info is also important.
I hope you can help and I ready to give any information you need.
Best,
Kilian

Factory reset from recovery?

Yes, also tried several times. No change

Troubleshooting help for Rooting Samsung S7 G930F Nougat connections won't switch on

Hi
I have followed the instructions to the letter to root Android 7 on my S7 G930F. Installed TWRP & all the relevant files, flashed through TWRP & then flashed verity & SuperSU. It worked, in as far as the phone rebooted, but my Wifi won't switch on (nor will bluetooth, data or any other connection) & when I type, the letters overwrite each other.
I can cope with the overwriting, as I could get through the setup & then install Swiftkey Keyboard & log into my Samsung & Google accounts using that, but the connections just refuse to turn on. So I've had to reflash back to the original stock ROM as below (from Sammobile, as my phone has not had the update sent to me yet).
Anyone else had this problem? Not seen it anywhere else (so far).
Samsung Galaxy S7 G930F (UK)
Android 7.0
Baseband: G930FXXU1BPHJ
Build No: NRD90M.G930FXXU1DQB7
Security Patch Level 1st Feb 2017
Thanks

rockluvva said:
Hi
I have followed the instructions to the letter to root Android 7 on my S7 G930F. Installed TWRP & all the relevant files, flashed through TWRP & then flashed verity & SuperSU. It worked, in as far as the phone rebooted, but my Wifi won't switch on (nor will bluetooth, data or any other connection) & when I type, the letters overwrite each other.
I can cope with the overwriting, as I could get through the setup & then install Swiftkey Keyboard & log into my Samsung & Google accounts using that, but the connections just refuse to turn on. So I've had to reflash back to the original stock ROM as below (from Sammobile, as my phone has not had the update sent to me yet).
Anyone else had this problem? Not seen it anywhere else (so far).
Samsung Galaxy S7 G930F (UK)
Android 7.0
Baseband: G930FXXU1BPHJ
Build No: NRD90M.G930FXXU1DQB7
Security Patch Level 1st Feb 2017
Thanks
Click to expand...
Click to collapse
Hi
How did you upgraded to Nougat? I see that your modem is still on Marsmellow

Hi Max
I downloaded the latest Nougat firmware from Sammobile (the one for UK/Ireland & HG3 is the same one, my network is 3 but my phone is European unlocked) & flashed it. Are you saying it's the modem that's the problem?
Thanks

rockluvva said:
Hi Max
I downloaded the latest Nougat firmware from Sammobile (the one for UK/Ireland & HG3 is the same one, my network is 3 but my phone is European unlocked) & flashed it. Are you saying it's the modem that's the problem?
Thanks
Click to expand...
Click to collapse
Hi
That baseband seems old , when you upgraded your phone what files did you use . usually you have 5 files , from those 5 you use 4 ,AP BL & CP + home_csc or CSC ......CSC will factory reset your phone , home_csc will not reset your phone if it is the same as the one in your phone

Hi Max
Ah hah, when I flashed the ROM, I only used the biggest file, didn't touch the others. Maybe I should try to flash it again with the other files too, as you've suggested. That's not mentioned in any instructions I've seen. I'm sort of halfway between a novice & an almost medium novice with regard to this kind of thing.
I will give that a go tonight - thanks very much!

rockluvva said:
Hi Max
Ah hah, when I flashed the ROM, I only used the biggest file, didn't touch the others. Maybe I should try to flash it again with the other files too, as you've suggested. That's not mentioned in any instructions I've seen. I'm sort of halfway between a novice & an almost medium novice with regard to this kind of thing.
I will give that a go tonight - thanks very much!
Click to expand...
Click to collapse
Is all part of the learning process
Yes i would do so , flash the full rom
As guide you can check this thread
https://forum.xda-developers.com/galaxy-s7/how-to/official-stock-firmware-update-odin-t3369431
Good luck

Thanks Max. Unfortunately, it still didn't work. I took the liberty of downloading an XEU UK ROM from Sammobile (the original one I'd got one for my network, which gave me the 3 logo when I booted up, so I didn't want that). I flashed it as per the instructions with all the files, then I went through the root instructions. I booted up fine, but still the same prob - Wifi wouldn't activate, although the keypad was fine this time. Very odd!
Info is now:
Android 7.0
Baseband Version: G930FXXU1DQB1
Build No: NRD90M G930FXXU1DQB7
I think I may not bother, the S8 will be out soon & I intend to get that, so I may wait on root info on that. I've disabled the bloatware for now.
Many thanks again for your help though!

rockluvva said:
Thanks Max. Unfortunately, it still didn't work. I took the liberty of downloading an XEU UK ROM from Sammobile (the original one I'd got one for my network, which gave me the 3 logo when I booted up, so I didn't want that). I flashed it as per the instructions with all the files, then I went through the root instructions. I booted up fine, but still the same prob - Wifi wouldn't activate, although the keypad was fine this time. Very odd!
Info is now:
Android 7.0
Baseband Version: G930FXXU1DQB1
Build No: NRD90M G930FXXU1DQB7
I think I may not bother, the S8 will be out soon & I intend to get that, so I may wait on root info on that. I've disabled the bloatware for now.
Many thanks again for your help though!
Click to expand...
Click to collapse
Hi
Strange... what error gives you? how it does behave when you try to connect?
Check you settings , avoid smart connection , did you check in a different wifi
Also did you try to factory reset , and wipe dalvick and cache from recovery

Hiya
It doesn't give an error, I've factory reset the phone through TWRP, so I get the usual setup menu - select your language, then it goes to the Wifi screen. Usually Wifi will switch on & a list of routers come up almost straight away. After I've rooted, the phone boots, I get the setup page, select my language, then the Wifi page just says "Switching on" & does nothing, just stays like that., nothing comes up. I've even left it for well over 10 minutes & it does nothing except saying "Switching On", so if I skip that section, go through the rest of the setup & finish, when I go back to connections in settings, it says the Wifi is on, but it's "greyed out", i.e I press it & nothing happens & it's not connected anywhere.
I haven't tried wiping Dalvick & cache through recovery though. I'm off work next week, I will probably dedicate some time to it then, I don't like something like this beating me!!
Thanks again for all the suggestions.

rockluvva said:
Hiya
It doesn't give an error, I've factory reset the phone through TWRP, so I get the usual setup menu - select your language, then it goes to the Wifi screen. Usually Wifi will switch on & a list of routers come up almost straight away. After I've rooted, the phone boots, I get the setup page, select my language, then the Wifi page just says "Switching on" & does nothing, just stays like that., nothing comes up. I've even left it for well over 10 minutes & it does nothing except saying "Switching On", so if I skip that section, go through the rest of the setup & finish, when I go back to connections in settings, it says the Wifi is on, but it's "greyed out", i.e I press it & nothing happens & it's not connected anywhere.
I haven't tried wiping Dalvick & cache through recovery though. I'm off work next week, I will probably dedicate some time to it then, I don't like something like this beating me!!
Thanks again for all the suggestions.
Click to expand...
Click to collapse
No way , never beating
Try to boot in "SAFE MODE" to make sure there is no app making trouble ....
Press and hold the Power key.
As soon as you can see the ‘Samsung Galaxy S7 ’ on the screen, release the Power key and immediately hold the Volume Down key.
Continue holding the Volume Down button until the device finishes rebooting.
You may release it when you can see ‘Safe mode’ in the bottom left corner of the screen.

I can remember something about there being a minimal setup for Nougat, but this can only be done by the stock recovery.("sec_csc.zip" recovery script in the csc image If you're interested. Apparently got something to do with default language settings which bugs out the keyboard) If booting in safe mode as mentioned above doesn't help can you please try the following:
Flash the full ROM again(All files in relevant slots in odin) but not the HOME csc with auto reboot ticked. The phone will factory reset and boot into the setup screen. Run through the ROM setup and only once it's done flash TWRP and root. AFAIK this only needs to be done once per device, after which you can factory reset with TWRP again

Samsung Galaxy S6 Edge is not booting even after a factory reset

My Samsung Galaxy S6 Edge is not booting even after a factory reset
A mobile app. for Android was installed successfully and since then I’m only having issues with my Samsung mobile:
- Since the installation of both the Hockey & Mobile Banking apps, my mobile freezes during any regular action and after a few seconds the device auto-restarts itself intermittently; this happened during the weekend while in use;
- Sunday night I uninstalled both the Hockey & Mobile Banking apps and the phone continued to freeze and restart intermittently. I was able to boot in SAFE MODE.
- This morning after the phone was turned off and turned on, the phone is not loading; the boot is looping and unable to reach the menu. I’m able to boot in SAFE MODE.
- This morning I did a Factory Reset, when done I get the “welcome” screen and right thereafter, the mobile freezes, auto-restarts and the boot keep looping.
Any help would be highly appreciated.

Hey guys, any suggestions...? I tried last night restoring the OS using Samsung Smart Switch application and the process went just fine the first time and during the setup process the phone just restarted against and for stuck in bootloop again.
I did a second attempt but after the PC is don and the phone boots it gets stuck.

Sometimes after restoring stock firmware and you get a bootloop, you have to boot to stock recovery and factory reset then wipe cache partition.
I know you said you did that once before you posted, you did that before you used SmartSwitch. Have you tried factory reset since restoring with SmartSwitch?

Yes, I did with SS last night; I did it again this morning and after completing the 100% software download, it started updating the device and at 97% it stopped and got the message "FAILED".
now as we speak, I restarted it again and now it's at 66^ downloading the files.

How can I perform a clean install using SS...? or do I need ODIN...? I want to keep the mobile as original as possible.

If you can find your stock firmware, download it and flash it with Odin, it's more reliable.

Maybe a stupid question: Where can I find my stock firmware...?

My info:
PDAIX / CSCI2 / PHONE: PHH (XFA)
I found the Firmware on SAMMOBILE: https://www.sammobile.com/firmwares/galaxy-s6-edge/SM-G925F/XFA/download/G925FXXU4DPIX/108273/
Is this a stock Firmware and reliable source...?

Sammobile is a very reliable source, if that firmware is the newest one for your model number and country/region/carrier then you're good to go.

I did install Firmware corresponding to my phone (PDAIX / CSCI2 / PHONE: PHH (XFA)) using Odin, I can use the phone for like 2 or 3 minutes and then it freezes, restarts and gets into boot loop.
Any more drastic measurements to take...? Is there an online tool to test the hardware function(s)...?

After flashing stock firmware, have you tried booting to stock recovery then do the factory reset and wipe cache then reboot.

Yes, I did...!
In ODIN, do I load only the "AP"...?

In most situations, AP is all you need if the firmware is an all in one firmware file, if you have a 4 part firmware then you need to put each part in its corresponding tab/slot in Odin.
Sometimes you have to flash more than once to be successful.

My phone is running like a horse now...! No more intermittent restarts nor boot looping.
I just did a clean install of Android 7.

The clean install of Android 7 went fine and now it's working back again, was because I changed the "Reactivation Lock" to OFF; I think this helped.

Question Stucked in bootloop

Hey,
I have got Xiaomi POCO X3 PRO NFC 8/256GB, most probably have android 11 MIUI 12.5.5 global, in EU. Been using automatic updatese. Please note, that I haven't flashed any custom software. Have been using vanilla OS since release and been updating it with automatic updates.
Suddenly my phone has entered bootloop state and I am not able to take it out of it since.
Latest action I have taken just before the problem started is that I connected my phone to charger during the game ( PGR) , while it was at around 40% charge. After short moment it has frozen and restarted the phone. Since then it has been constantly bootlooping with POCO icon and resetting again, turning off the screen and back to POCO icon - it has been for over 2 hours already. It doesn't feel that my power button is stuck.
Still can operate power + vol buttons reliably. I can access Fastboot and MIUI Recovery Menu 5.0, where I have 4 options:
1. Reboot - back to bootloop
2. Wipe data - haven't tried it yet
3. Connect to MIAssistant - TIL it is supposedly dead service?
4. Safemode - it brings me back to bootloop again
Tried to take out SIM and microsd, to no avail. Haven't tried to wipe out data until I try other solutions, to restore it, as I have some 2FA on it, which would be a pain to recover.
I haven't learned before around flashing and recovery for the last few years (only I have done it around android 4, 5 and 6). I would like request assistance - how to approach resolving this problem?
Currently I am reading on fastboot, which I believe might help me here, by connecting it to PC.
EDIT: Got around this https://xiaomiflashtool.com/tutorial/use-xiaomi-flash-tool and stock rom https://xiaomistockrom.com/xiaomi-poco-x3-pro , I believe it might work
EDIT #2: At 20.11.2022. At around end of october this issue started repeating out of nowhere. And then suddenly stop,
Then the phone bricked. Sent for warranty and just got it back.
Turns out that motherboard died and was the cause.

gol_galad said:
Hey,
I have got Xiaomi POCO X3 PRO NFC 8/256GB, most probably have android 11 MIUI 12.5.5 global, in EU. Been using automatic updatese. Please note, that I haven't flashed any custom software. Have been using vanilla OS since release and been updating it with automatic updates.
Suddenly my phone has entered bootloop state and I am not able to take it out of it since.
Latest action I have taken just before the problem started is that I connected my phone to charger during the game ( PGR) , while it was at around 40% charge. After short moment it has frozen and restarted the phone. Since then it has been constantly bootlooping with POCO icon and resetting again, turning off the screen and back to POCO icon - it has been for over 2 hours already. It doesn't feel that my power button is stuck.
Still can operate power + vol buttons reliably. I can access Fastboot and MIUI Recovery Menu 5.0, where I have 4 options:
1. Reboot - back to bootloop
2. Wipe data - haven't tried it yet
3. Connect to MIAssistant - TIL it is supposedly dead service?
4. Safemode - it brings me back to bootloop again
Tried to take out SIM and microsd, to no avail. Haven't tried to wipe out data until I try other solutions, to restore it, as I have some 2FA on it, which would be a pain to recover.
I haven't learned before around flashing and recovery for the last few years (only I have done it around android 4, 5 and 6). I would like request assistance - how to approach resolving this problem?
Currently I am reading on fastboot, which I believe might help me here, by connecting it to PC.
EDIT: Got around this https://xiaomiflashtool.com/tutorial/use-xiaomi-flash-tool and stock rom https://xiaomistockrom.com/xiaomi-poco-x3-pro , I believe it might work
Click to expand...
Click to collapse
https://forum.xda-developers.com/t/flash-tool-guide-use-xiaomi-flash-tool.4262425/

NOSS8 said:
https://forum.xda-developers.com/t/flash-tool-guide-use-xiaomi-flash-tool.4262425/
Click to expand...
Click to collapse
Thanks, will follow this to make back up and in case it occurs again.
Managed to resolve this problem by draining up my battery due to constant restarts(obviously can't pull out battery). After that happened, connected my phone to normal charger, juiced it up to 10% and phone started just fine.
I have tried to recreate this problem, however it didn't occur again.