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Phone won't turn on, no system

I have a xiaomi redmi note 7 pro from china and I was planning on rooting it and changing the rom. Anyways I unlocked boot loader and installed twrp but couldn't install the rom using twrp recovery mode. Then I followed a video which rebooted the phone into recovery mode again after clearing some things. However, before rebooting it says no OS but the video did it anyways. In the video the phone rebooted back into recovery mode fine, but my phone does not boot. It constantly boots up to the redmi logo, flashes and boots again into redmi logo. This continues forever. I can, however, at this point enter fast boot. I thought the problem must be I have no rom so I just need to flash a rom. Using mi flash tool didn't work there was always some error and I turned the phone off. After turning the phone off, I cannot turn it back on again!!! Nothing, not holding power, not holding power + volume, just pure blank can't boot at all. I really don't know wtf I can do know it just doesn't turn on at all no matter what. Please help guys.

zhou111 said:
I have a xiaomi redmi note 7 pro from china and I was planning on rooting it and changing the rom. Anyways I unlocked boot loader and installed twrp but couldn't install the rom using twrp recovery mode. Then I followed a video which rebooted the phone into recovery mode again after clearing some things. However, before rebooting it says no OS but the video did it anyways. In the video the phone rebooted back into recovery mode fine, but my phone does not boot. It constantly boots up to the redmi logo, flashes and boots again into redmi logo. This continues forever. I can, however, at this point enter fast boot. I thought the problem must be I have no rom so I just need to flash a rom. Using mi flash tool didn't work there was always some error and I turned the phone off. After turning the phone off, I cannot turn it back on again!!! Nothing, not holding power, not holding power + volume, just pure blank can't boot at all. I really don't know wtf I can do know it just doesn't turn on at all no matter what. Please help guys.
Click to expand...
Click to collapse
1. Never boot into the system when there is a 'no OS' warning.
2. Use this TWRP next time (https://forum.xda-developers.com/redmi-note-7-pro/development/unofficial-twrp-3-3-1-proper-t3933531)
Does the phone charge or get detected by the computer when connected via USB?
If MiFlash doesn't seem to work try using ADB to Fastboot the ROM
If all hope is lost, the service centres can fix it.

Naveenthemi said:
1. Never boot into the system when there is a 'no OS' warning.
2. Use this TWRP next time (https://forum.xda-developers.com/redmi-note-7-pro/development/unofficial-twrp-3-3-1-proper-t3933531)
Does the phone charge or get detected by the computer when connected via USB?
If MiFlash doesn't seem to work try using ADB to Fastboot the ROM
If all hope is lost, the service centres can fix it.
Click to expand...
Click to collapse
when connected it is detected as qualcom 9008. I searched I think the phone is hardbricked, so can't enter fastboot. I think it can turn on and off. After holding power for 15 seconds, the usb is no longer detected. I could do the same to turn it back on. Do you know a service centre in Toronto?

Fcyrp Zip Need to Flash After Flash any Custom Rom
And Come in Telegram Official Group For Any Support of Redmi Note 7 Pro https://t.me/Rn7proGlobal

zhou111 said:
when connected it is detected as qualcom 9008. I searched I think the phone is hardbricked, so can't enter fastboot. I think it can turn on and off. After holding power for 15 seconds, the usb is no longer detected. I could do the same to turn it back on. Do you know a service centre in Toronto?
Click to expand...
Click to collapse
Yes it's hardbricked for sure! But are you sure MiFlash doesn't detect it?
If so any good service centre around you should be able to fix it, it's something to do with the software so they won't need Mi authorised parts...

Naveenthemi said:
Yes it's hardbricked for sure! But are you sure MiFlash doens't detect it?
If so any good service centre around you should be able to fix it, it's something to do with the software so they won't need Mi authorised parts...
Click to expand...
Click to collapse
Mi flash detects it as COM10 or COM20 depending on which USB. But when I flash I get error like no hello packet. Also I am not sure if I am suppose to put prog emmc sdm660 in the images folder or not.

zhou111 said:
Mi flash detects it as COM10 or COM20 depending on which USB. But when I flash I get error like no hello packet. Also I am not sure if I am suppose to put prog emmc sdm660 in the images folder or not.
Click to expand...
Click to collapse
Ok so Hello Packet errors are caused due to corrupted files or also if your flashing is interrupted in the middle
Try:
1. Making sure your PC isn't 32 bit
2. Draining out the phone battery and try again
3. Disabling driver signature enforcement(https://www.androidfoot.com/2016/08/how-to-disable-driver-signature.html)
4. An older version of MiFlash
5. If all of the above don't work ,try using another PC
6. Also make sure the USB ports are in working condition ( I think yours is working tho)

Naveenthemi said:
Ok so Hello Packet errors are caused due to corrupted files or also if your flashing is interrupted in the middle
Try:
1. Making sure your PC isn't 32 bit
2. Draining out the phone battery and try again
3. Disabling driver signature enforcement(https://www.androidfoot.com/2016/08/how-to-disable-driver-signature.html)
4. An older version of MiFlash
5. If all of the above don't work ,try using another PC
6. Also make sure the USB ports are in working condition ( I think yours is working tho)
Click to expand...
Click to collapse
My pc is 65 bit. I can't try #2 yet since it takes a while for battery to drain. I disabled driver signature enforce and using old mi flash and tried new pc still doesn't work. My boot loader is unlocked but maybe I accidently locked it? I don't know how to check.

zhou111 said:
My pc is 65 bit. I can't try #2 yet since it takes a while for battery to drain. I disabled driver signature enforce and using old mi flash and tried new pc still doesn't work. My boot loader is unlocked but maybe I accidently locked it? I don't know how to check.
Click to expand...
Click to collapse
Try this in ADB
(fastboot getvar all)
Without the brackets, now check for the unlocked line in the output and see if it shows yes or no
1. 64 eh, ok then no probs there
2. Oh ok take your time draining it
3. Try fastbooting the ROM via ADB see if that's works too

Naveenthemi said:
Try this in ADB
(fastboot getvar all)
Without the brackets, now check for the unlocked line in the output and see if it shows yes or no
1. 64 eh, ok then no probs there
2. Oh ok take your time draining it
3. Try fastbooting the ROM via ADB see if that's works too
Click to expand...
Click to collapse
I entered the command says waiting for device. how do you flash with adb?

zhou111 said:
I entered the command says waiting for device. how do you flash with adb?
Click to expand...
Click to collapse
Oh that means ADB isn't recognizing it.
There isn't much we can do if ADB doens't recognize it!
Did you look up for Service Centres?

zhou111 said:
I have a xiaomi redmi note 7 pro from china and I was planning on rooting it and changing the rom. Anyways I unlocked boot loader and installed twrp but couldn't install the rom using twrp recovery mode. Then I followed a video which rebooted the phone into recovery mode again after clearing some things. However, before rebooting it says no OS but the video did it anyways. In the video the phone rebooted back into recovery mode fine, but my phone does not boot. It constantly boots up to the redmi logo, flashes and boots again into redmi logo. This continues forever. I can, however, at this point enter fast boot. I thought the problem must be I have no rom so I just need to flash a rom. Using mi flash tool didn't work there was always some error and I turned the phone off. After turning the phone off, I cannot turn it back on again!!! Nothing, not holding power, not holding power + volume, just pure blank can't boot at all. I really don't know wtf I can do know it just doesn't turn on at all no matter what. Please help guys.
Click to expand...
Click to collapse
I had the same issue, but my phone went to fastboot from there I flashed it, the process was simple :
1. Download the fastboot rom and extract it (I guess two times, the first extraction extracts a file, open that with some extraction tool and uzip again, there you will see the fw with certain folders and images etc ).
2. Download the adb/fastboot zip file I"ll attach that here, extract it to the same folder where your fw files are. (fw = firmware).
3. You will find 3 bat files, flash all, flash all and lock, flash except storage, choose flash all (execute it).
4. Once done, reboot to recovery (stock), do a data wipe again.
This worked for me, hope it does for you too.
4.

hackeroid said:
I had the same issue, but my phone went to fastboot from there I flashed it, the process was simple :
1. Download the fastboot rom and extract it (I guess two times, the first extraction extracts a file, open that with some extraction tool and uzip again, there you will see the fw with certain folders and images etc ).
2. Download the adb/fastboot zip file I"ll attach that here, extract it to the same folder where your fw files are. (fw = firmware).
3. You will find 3 bat files, flash all, flash all and lock, flash except storage, choose flash all (execute it).
4. Once done, reboot to recovery (stock), do a data wipe again.
This worked for me, hope it does for you too.
4.
Click to expand...
Click to collapse
He/She said the phone doesn't boot into Fastboot either so that's very unlikely to work :-\

(I need help) My Huawei Y6 Pro 2019 MRD-LX2 won't boot

I need help. My Huawei Y6 Pro 2019 (MRD-LX2) EMUI 9.1.0 C636E7R1P7 won't boot and tells me "Serious problems occured when the device boot, you are recommended to do factory data reset". How do I get past this without doing a factory data reset? All of my precious data is in here
I've tried doing "Download latest update and recovery" and booting it to fastboot rescue mode and recovery it with HiSuite but no luck.
Any solutions to this before I go to an Authorized Huawei Service Center?
Pardon me for my English

you could try miracle box... but I don't even want to go close to that tool...
and if your device bootloader is unlocked I think your warranty is voided

hellofriendlymanveriosns said:
you could try miracle box... but I don't even want to go close to that tool...
and if your device bootloader is unlocked I think your warranty is voided
Click to expand...
Click to collapse
My device bootloader isn't unlocked and I'm using Stock ROM.

Can't believe your issue comes out of the blue. You must have applied something before.
BTW:
If you can access the phone by means of ADB you can do a Factory Reset at your own without wiping phone's user-data

jwoegerbauer said:
Can't believe your issue comes out of the blue. You must have applied something before.
BTW:
If you can access the phone by means of ADB you can do a Factory Reset at your own without wiping phone's user-data
Click to expand...
Click to collapse
I just forgot to charge the phone and its on a low battery percentage when it updated.
I'm just a noob , what do I type in with ADB?

Question Device corrupted

Hi all.
I read that my oneplus 9 was able to test the beta of android 12 and found that I could do so in developer options and choose the dsu loader. Did that and now my device won't work at all. I can't get into recovery and factory reset it or anything it just restarts itself and i get an error message saying the device is corrupted and won't boot. Is it any way to fix this or have my own foolishness killed this phone? Please help

Illusions_887 said:
Hi all.
I read that my oneplus 9 was able to test the beta of android 12 and found that I could do so in developer options and choose the dsu loader. Did that and now my device won't work at all. I can't get into recovery and factory reset it or anything it just restarts itself and i get an error message saying the device is corrupted and won't boot. Is it any way to fix this or have my own foolishness killed this phone? Please help
Click to expand...
Click to collapse
Not all hope is gone. If there is an msm tool for your variant your in luck. I have the global unlocked op9 and there isn't one yet. Although you can use a fastboot rom from xda. And there is always last resort of calling OnePlus customer service and getting a remote session . Explain to them you tried the beta release and now phone is unuseable . Hope you get it fixed as I bricked my op8 a month or so ago and it's a bad feeling. I also read the developer previews were not for north American devices. Maybe you saw that as well.

Illusions_887 said:
Hi all.
I read that my oneplus 9 was able to test the beta of android 12 and found that I could do so in developer options and choose the dsu loader. Did that and now my device won't work at all. I can't get into recovery and factory reset it or anything it just restarts itself and i get an error message saying the device is corrupted and won't boot. Is it any way to fix this or have my own foolishness killed this phone? Please help
Click to expand...
Click to collapse
If you can boot to fastboot mode. Then fastboot format userdata I think

Didn't work. Think my bootloader is locked as well since I haven't unlocked it at all. Just read online that you could test the android beta by using that dsu thing and now my phone is gone. It was completely stock hadn't touched a thing except that I got into developer options. I didn't think i could brick a phone without mixing with ROMs and stuff.

Can you get it to bootloader?
Power off completely, then 3-button hold (vol up + vol down + power) till bootloader screen.
If you can, and you can get fastboot to recognize the device, you might have a shot at fastboot oem unlock, and then possibly a fastboot rom.
If not, then you might ask Oneplus support for an MSM tool

reaper000 said:
Can you get it to bootloader?
Power off completely, then 3-button hold (vol up + vol down + power) till bootloader screen.
If you can, and you can get fastboot to recognize the device, you might have a shot at fastboot oem unlock, and then possibly a fastboot rom.
If not, then you might ask Oneplus support for an MSM tool
Click to expand...
Click to collapse
No luck with OEM unlock. Contacted oneplus here in sweden and will send the phone to them on Monday hoping they can fix it. Never thought i could mess upp a phone so much by just tinkering with settings within the phone but you live and learn all the time i guess. Bit sad since I got the phone two days ago

Reflash Poco f2 pro with QFIL through EDL

My phone was hard bricked after my battery ran out. It only shows a red light when charging.
Luckily the 9008 mode works and through the testpoints i'm able to connecti via edl.
Unfortunately MIFLASH doesn't work since you need an authorized account. However, i'm trying to use QFIL to flash on a fastboot rom. It doesn't seem to work.
Would anyone be able to help me with:
1. a guide on how to flash through QFIL (and which rom i need to use)
2. a No Auth Firehose file for this phone so i can use MIFLASH without authorization.
Thanks!

ok. Some progress now. I'm able to access fastboot. However, the phone is not detected on the computer. Red light while charging is also not present anymore, although i doubt that this is the flexcable issue.
Does anyone know how i can reflash with a locked bootloader in Fastboot?

pimf said:
ok. Some progress now. I'm able to access fastboot. However, the phone is not detected on the computer. Red light while charging is also not present anymore, although i doubt that this is the flexcable issue.
Does anyone know how i can reflash with a locked bootloader in Fastboot?
Click to expand...
Click to collapse
With Mi Assistant but if the phone is not detected it is mission impossible.

some more progress.
Phone is turning on now, but is stuck at the miui logo. I have no idea why this phone is coming back to live so randomly. Still not able to see the phone in windows. (nothing in device manager)
I also don't understand what is going wrong. I didn't reflash anything. I only replaced the flex cable and then my phone only lid up with the red charging light (staying red).
Now the red light is not on anymore. But i'm sure there is connection since i was able to get into 9008 mode with the computer connecting to the phone in EDL.

pimf said:
some more progress.
Phone is turning on now, but is stuck at the miui logo. I have no idea why this phone is coming back to live so randomly. Still not able to see the phone in windows. (nothing in device manager)
Click to expand...
Click to collapse
Try wipe data with recovery.

NOSS8 said:
Try wipe data with recovery.
Click to expand...
Click to collapse
Ill try again, however volume up + power button does not work (and I can therefore not enter recovery mode).
I'll keep trying.

pimf said:
Ill try again, however volume up + power button does not work (and I can therefore not enter recovery mode).
I'll keep trying.
Click to expand...
Click to collapse
Wiped the data, and the first boot still is stuck at the miui logo. Waited for a good 25 minutes. Mi assistant in the recovery menu doesn't let me connect with the computer either. I'm really curious why that is.

pimf said:
Wiped the data, and the first boot still is stuck at the miui logo. Waited for a good 25 minutes. Mi assistant in the recovery menu doesn't let me connect with the computer either. I'm really curious why that is.
Click to expand...
Click to collapse
Change the flexcable and try with Miflash

NOSS8 said:
Change the flexcable and try with Miflash
Click to expand...
Click to collapse
already did that. No go. I'm a bit frustrated as to why the pc doesn't see the phone.

pimf said:
already did that. No go. I'm a bit frustrated as to why the pc doesn't see the phone.
Click to expand...
Click to collapse
If the problem occurred after replacing a component (battery, cable, etc.), surely something is incorrectly mounted or defective.

I have a spare charging pcb. can try that. But i'm not sure that's going to help since i can see the phone in 9008 mode. Just cannot flash the phone due to the mi account restrictions.

tried the new pcb. Same problems. I'm wondering. How do i activate wlan when in recovery mode. It shows that you can download a software package over wlan in recovery mode but everytime i click wlan it activates and immediately deactivates again.

pimf said:
tried the new pcb. Same problems. I'm wondering. How do i activate wlan when in recovery mode. It shows that you can download a software package over wlan in recovery mode but everytime i click wlan it activates and immediately deactivates again.
Click to expand...
Click to collapse
Btw:
Have you changed the battery?
Was the phone detected before?
What is the rom installed?

And now the phone is bootlooping. There is more and more life coming in this phone. But i really cannot understand why this phone is not properly working. There is nothing i'm changing here so the fact it's all of a sudden bootlooping doesn't make much sense to me.

NOSS8 said:
Btw:
Have you changed the battery?
Was the phone detected before?
What is the rom installed?
Click to expand...
Click to collapse
1. Have not changed the battery. Battery seems to be fine.
2. Yes Phone was detected before. I used the last bit of power to get most of my pictures off the phone. Also, now it's still detected under 9008 mode.
3. Rom installed was the stock rom (poco f2 pro global) that came with the phone.

battery is at 98%. Phone just turned on for the first time. It's asking me to login to my mi account to unlock my phone. However, it cannot verify the password because there is no network connection. Wifi is not working, and there is no way of setting the sim settings until my phone is unlocked.
So, now i need to understand why the wifi is not working.
This is seriously the strangest thing i've encountered with phones. just doesn't make sense at all

ok. Just got my phone unlocked. However, phone keeps powering off during first setup. Phone is still highly unstable and the wifi doesn't seem to work well. The phone is at the moment useless. It's too unstable to use as a daily driver. Hopefully this will get better. Does anyone know why the wifi doesn't seem to work. seems to be a problem in all modes (rescue, and normal phone
edit: phone just turned off again while setting the pincode.
edit2: just updated with a new version of miui, wifi is still a problem, and phone turned off during updating all the system apps. Really not sure why this phone is so unstable now.

Ok, still an unstable phone. Seems like WIFI Bluetooth and usb connection don't work.
Does anyone know if it might be a loose cable that i need to reseat? Does it sound like a certain chip that needs to be replaced?

nobody has a clue?

pimf said:
nobody has a clue?
Click to expand...
Click to collapse
From the symptoms described above, it seems that your F2 pro has soldering problems with the SoC (system on chip) which is basically reballing the cpu

Soft Bricked Poco F2 Pro - Crisis.

Dear All,
Good evening, I am writing to seek help on a critical situation I am in.
I own a Poco F2 Pro Global Version , as it came from the factory, the updates have been happening. It has stock ROM with latest updates.
Yesterday evening while the phone was getting a call, it rebooted once and a second time. Thereafter it is stuck in a boot loop.
It comes to Poco logo then Miui Logo and reboots or stays on Miui Logo.
It is worth noting that the seliei pop up camera is half stuck out .
It is extremely critical for me to get access to the phone data and specially some authentication apps. Without these I may be at a grave risk .
Bootloader is locked.
I have tried the below steps.
1. Reboot several times.
2. Boot into Fastboot and try to restore the OS via a flash file, but the same fails as bootloader is locked.
3. I have Miui Recovery 5 installed.
4. Tried to open the back, leave the battery disconnected for a few hours and try the above again.
5. I have even disconnected the selfie pop up camera thinking it may have been a hardware issue.
6. I have rebooted innumerable times.
7. When I attempt boot in safe mode, the boot up animation and sound comes and then just simply freezes on Miui logo.
It is my humble request, is there anyone who had a similar experience or has had success to revive their device with data and apps intact, please please reply to my post. This is really critical for me otherwise I would not have bothered anyone here.
Thank you for your understanding and support.

If it's still under warranty, send it.
Otherwise not much to try since the bootloader is locked.
The only thing done in your case is to erase the data from the recovery, without being sure that it will work.
I understand that your data is important.
Sounds more like a HW problem than a SW problem.

NOSS8 said:
If it's still under warranty, send it.
Otherwise not much to try since the bootloader is locked.
The only thing done in your case is to erase the data from the recovery, without being sure that it will work.
I understand that your data is important.
Sounds more like a HW problem than a SW problem.
Click to expand...
Click to collapse
Hi Noss8, Unfortunately the hardware and software warranties are over.
I have seen some videos on youtube where the bootloader unlocks without erasing the data., but I think that is exclusive to MTK processors.
I am at a total loss of choices how to handle this as the data is extremely critical, I know I learned a lesson to make backups more frequently.

raunak said:
Hi Noss8, Unfortunately the hardware and software warranties are over.
I have seen some videos on youtube where the bootloader unlocks without erasing the data., but I think that is exclusive to MTK processors.
I am at a total loss of choices how to handle this as the data is extremely critical, I know I learned a lesson to make backups more frequently.
Click to expand...
Click to collapse
Yep, only for Mediatek Socs.
Sending to a repair center or replacement motherboard or flash in EDL mode = data loss.
Or find a nice qualified repairman who will try to recover your data, which is not obvious.
Not using Mi cloud on the phone?
EDIT:
I forgot to specify that if you have a security on the lock screen (surely the case) your data is encrypted, which makes their recovery impossible.
Exept maybe by the CIA, KGB, MOSSAD, DGSE, etc..

NOSS8 said:
Yep, only for Mediatek Socs.
Sending to a repair center or replacement motherboard or flash in EDL mode = data loss.
Or find a nice qualified repairman who will try to recover your data, which is not obvious.
Not using Mi cloud on the phone?
EDIT:
I forgot to specify that if you have a security on the lock screen (surely the case) your data is encrypted, which makes their recovery impossible.
Exept maybe by the CIA, KGB, MOSSAD, DGSE, etc..
Click to expand...
Click to collapse
Hi ,
I was using the Cloud backup, but I had some 45000 photos which did not upload online and Microsoft authenticator installed(data and sessions are exclusive to the device).
These are the only items I need access to . Yes the screen has pattern unlock.

raunak said:
Hi ,
I was using the Cloud backup, but I had some 45000 photos which did not upload online and Microsoft authenticator installed(data and sessions are exclusive to the device).
These are the only items I need access to . Yes the screen has pattern unlock.
Click to expand...
Click to collapse
Indeed in this case.
It is for this reason that I transfer my photos as quickly as possible to my PC and to a cloud from the PC (already had a hard drive which failed, served as a lesson).