Question No valid operating system could be found - Motorola Edge 20 Pro

Hello,
I have Moto Edge 20 pro, can't boot with the following message ( No valid operating system could be found )
unfortunately, the phone is locked ( flash_locked )
I try to unlock using ( OEM unlock ) . But failed, I think the OEM unlock option has unchecked in the previous OS.
There is any solution to flash new Rom or unlock the phone?

alsayed said:
Hello,
I have Moto Edge 20 pro, can't boot with the following message ( No valid operating system could be found )
unfortunately, the phone is locked ( flash_locked )
I try to unlock using ( OEM unlock ) . But failed, I think the OEM unlock option has unchecked in the previous OS.
There is any solution to flash new Rom or unlock the phone?
Click to expand...
Click to collapse
Hello, did you manage how to fix it?

Related

Bootloader Issue | FRP Lock | Root Guide

UPDATED:
Issue has been solved
( i buy 4 credits from dc unlocker and use HCU to read my boot loader code )
yes i know this is all from dc unlockcer yes they , unbrick my P9 but they also
changed the boot code when you flashed the rom via DC phoenix
im suspecting it that way .
Hello guys. Debranded P9 here
Nougat C432B386 Eva-L09
hw eu :country vendor
Bootloader unlocked and FRP lock
my device gets suffer from a hard brick
and recovered by DC Phoenix. In order to
have a Stable Nougat Firmware i decide to
debrand my phone ......
1st attempt : flashing the (.dgkmts AL10 chinese rom)
after flashing the chinese Al10 firmware
from DCUnlocker (.dgkmts) the device boot and
can be flashed into original stock rom
but the first attempt fails because my
vendor comes from a different build
2nd attempt: flashing the (.dgkmts AL10 chinese rom)
but this time, i decide to wipe NVME and OEM
after booting into system and checking my device
details my IMEI stays the same but Serial No is missing
so i had to use HCU to write my IMEI and Serial No.
and obtain a new vendor from hw eu
after booting system, I start to forced update the
EVA-L09C432B136
then i unlocked my bootloader at this stage
using the same bootloader code from Huawei
FIRMWARE:EVA-L09 C432B136
( please focus on this, i already unlocked the bootloader​
here , and allow the oem to unlock )
status : bootloader unlock
frp unlock
the process is successfully done and after that
i check my device details and perfectly debrand
my P9, after a minute it received an OTA update
from Huawei System Updater ( C432B186 )
I update into it and reboot and received another update
again C432B322 ( Nougat-beta version) and then
received the Final Build C432B386
SUMMARY STAGES:
bricked and wiped oem info / SN rewrite using HCU
1. AL10 Chinese rom >
2. C432B136 ( stock firmware)
( do unlocked bootloader )
3. OTA C432B186
4. OTA C432B322 ( Nougat beta )
5. OTA C432B386 ( Nougat Stable)
status : bootloader unlock
frp lock
I'm into that version C432B386
and now im having a trouble here
flashing the original bootloader code
command : fastboot oem unlock xxx-xxxx-xxx
it says : wrong password
failed to write the command
" is it possible to obtain a new bootloader code ?"
i don't know why the boot code changed even though
i use it in unlocking my Bootloader and it succeed
2nd scenario:
when i try to go to developer options and
go to Allow oem unlock
so that i can be able to obtain FRP unlock
but it is greyed out.
" i've read that if you're on Nougat and you are already
in unlocked bootlader, you will have this issue "
the possible way of unlocking FRP is relocked the
bootloader first and the OEM UNLOCK option will
come out.
i guess the solution is finding a new Bootloader code
but "how?" does anyone knows this?
3rd scenario: flashing new recovery
( expecting to have administrative rights )
i try to flash also the twrp nougat version
but it says verification error
command : fastboot flash recovery twrp3.1.0-3-eva.img
failed
i don't want to end up bricking my device again
I'm having a hard time to resurrect this and I don't
want to happen it again, I'm busy with my work so
i have to asked you guys, finding a best way how
to fixed this..
if someone is having a same situation like me
please participate on the thread and or someone who
already fixed this kind of issue please give us information . thank you !
oem info / SN rewrite using HCU
You rewrited the serial number? Yeah I don't know how to help you there...
benjamen50 said:
oem info / SN rewrite using HCU
You rewrited the serial number? Yeah I don't know how to help you there...
Click to expand...
Click to collapse
yes sir , there is HCU Client tool that can re-write Serial Number/IMEI / read bootcode
i use it and replaced the missing Serial Number of my device
vinfrix said:
yes sir , there is HCU Client tool that can re-write Serial Number/IMEI / read bootcode
i use it and replaced the missing Serial Number of my device
Click to expand...
Click to collapse
Imo, If you change serial.no then your unlock code would be different
Try relocking and again unlocking the bootloader.
_Frostplexx_ said:
Try relocking and again unlocking the bootloader.
Click to expand...
Click to collapse
i tried to but the code seems already changed.
FiKsTyLeR said:
Imo, If you change serial.no then your unlock code would be different
Click to expand...
Click to collapse
even if i write the same serial code ?
vinfrix said:
i tried to but the code seems already changed.
Click to expand...
Click to collapse
Dude i am in a similar situation.
I have the bootloader unlocked but frp is locked.
When you relocked and unlocked was the OEM unlock option changeable (not grayed out, no FRP LOCK) again?
revery0 said:
Dude i am in a similar situation.
I have the bootloader unlocked but frp is locked.
When you relocked and unlocked was the OEM unlock option changeable (not grayed out, no FRP LOCK) again?
Click to expand...
Click to collapse
yes if you unlock again it will come out
vinfrix said:
yes if you unlock again it will come out
Click to expand...
Click to collapse
As it turns out, you need to rollback to b182 and then upgrade to N through OTA.
dload b300
dload b182
OTA b386
OEM Unlock, ADB Debugging, USB Debugging
Unlock bootloader
twrp
revery0 said:
As it turns out, you need to rollback to b182 and then upgrade to N through OTA.
dload b300
dload b182
OTA b386
OEM Unlock, ADB Debugging, USB Debugging
Unlock bootloader
twrp
Click to expand...
Click to collapse
why should i rollback ?

No recovery ?

i accedently flashed stock recovery as in ramdisk recovery partition in twrp, now there no recovery , please help !
Flash stock recovery again!
In fastboot mode type: fastboot flash recovery_ramdisk recovery.img.
BS4388 said:
Flash stock recovery again!
In fastboot mode type: fastboot flash recovery_ramdisk recovery.img.
Click to expand...
Click to collapse
yeah sir i know , but my frb is locked and even cant enable in settings , oem option is untouchable , it cant be enabled , please help , wht should i do , and also i am on kingvip rom
Snober said:
yeah sir i know , but my frb is locked and even cant enable in settings , oem option is untouchable , it cant be enabled , please help , wht should i do , and also i am on kingvip rom
Click to expand...
Click to collapse
In this case I am unable to help you, but you can use dc-unlocker paid service.
It is here:
https://www.dc-unlocker.com/huawei-android-phone-frp-unlock
Sorry I never used it so can't give more information, you have a look and decide.
@Snober
you have now FRP-Lock ?
have you twrp/backup from last state (before install kangvip)
then test twrp/restore and look if phone work FRP=unlock
it is better if you need help - give more info : what is your build ? LLD-xxxxxxxx / what is delivered OS ( first delivered "7.xx", current "8.xx")
JamesBott said:
@Snober
you have now FRP-Lock ?
have you twrp/backup from last state (before install kangvip)
then test twrp/restore and look if phone work FRP=unlock
it is better if you need help - give more info : what is your build ? LLD-xxxxxxxx / what is delivered OS ( first delivered "7.xx", current "8.xx")
Click to expand...
Click to collapse
No sir i don't have backup of last state. And i can't go to twrp as i installed stock recovery
My build is 8.0.0142 c675 indian version
Now there is another problem now. I searched for solutions and got the answer as to relock bootloader. Then i relocked it with fastboot cammand. Now the phone is bricked and restarting to erecovery after honor logo. Currently status is phone relocled and frp lock in fastboot.
Please help
@Snober
sorry, now you have big problem !
Relock Bootloader is the greatest Bull**** by phones ! (my opinion !) if you relock bootloader WITH damage-rom you have a "damage-phone" !!!
please search "repair bootloop with bootlooder relock".
for future if your phone again work
- unlock bootloader AND let it open
- download your build FULL-Update (now you have backup for repair - if needed)
this 2 point's is very important
i think you have 1 chance to self-repair : search "recovery_ramdisk_BKL-L04_nocheck.img"
but - this is no simple. you must read and understand before you do ! I DONT KNOW if this work for you !!!
@JamesBott
Isn't it possible to unlock the bootloader again after relocking?
@BS4388
usually yes, but if you relock bootloader WITH damage-rom you have a "damage-phone" !!!
that's the point. if user install dev-rom and this work not 100% good AND then relock bootloader ...
if now bootloader locked - you need "fastboot flash oem unlock your-unlock-code"
if you have FRP-lock you dont can "fastboot flash xyz"
my friend have many "help me" from other user with this problem
he found the way with "recovery_ramdisk_BKL-L04_nocheck.img" and say - this work only if on phone twrp installed BEFORE error AND boot to twrp work
usually you can bootloder unlock and relock with your-unlock-code many (not once only)
JamesBott said:
@BS4388
usually yes, but if you relock bootloader WITH damage-rom you have a "damage-phone" !!!
that's the point. if user install dev-rom and this work not 100% good AND then relock bootloader ...
if now bootloader locked - you need "fastboot flash oem unlock your-unlock-code"
if you have FRP-lock you dont can "fastboot flash xyz"
my friend have many "help me" from other user with this problem
he found the way with "recovery_ramdisk_BKL-L04_nocheck.img" and say - this work only if on phone twrp installed BEFORE error AND boot to twrp work
usually you can bootloder unlock and relock with your-unlock-code many (not once only)
Click to expand...
Click to collapse
Well, I think @Snober can still revive his H9L by flashing a stock firmware using a paid service such as dc-unlocker bypassing the frp lock.
@BS4388
i dont know if dc-unlocker work with frp lock.
but i think it is a test worth - only it cost 15€ (ca. 15$) (if not work only 15€ lost - new phone cost 230€ [in germany])
i think if it's not work, dc-unlocker rewrite money to user-account. but my last dc-unlocker use a little time before now
I am sending my phone to friend as there is no service center in my location .
Should I send .
Can the phone be warranty as my phone status in fastboot is phone relocked and frp lock .
Will they detect the phone was unlocked or something like that . I mean will any problems comes . ?
Got My phone repaired in service center for free. They didn't see as the phone was in relocked state. So happy ?
this is very very good for you
BEFORE you any things do in future with your phone - YOU NEED FULL-UPDATE on your PC
JamesBott said:
this is very very good for you
BEFORE you any things do in future with your phone - YOU NEED FULL-UPDATE on your PC
Click to expand...
Click to collapse
Yeah, i know now, thats why i will not do anything stupid till then!!,Thanks for the support
Snober said:
my frp is locked, oem option is untouchable
Click to expand...
Click to collapse
Snober said:
Got My phone repaired in service center for free
Click to expand...
Click to collapse
For future reference: Stock ROM appears to require a network connection in order to enable FRP, so, connect with WiFi and it should become touchable.
noobington said:
For future reference: Stock ROM appears to require a network connection in order to enable FRP, so, connect with WiFi and it should become touchable.
Click to expand...
Click to collapse
Nah. Tried that. Not working

FRP Unlock?!

I dont know how ( i think i did it when i open oem lock [unlock]) but my FRP lock status is "FRP Unlock"
Can it cause to prevent me to install new roms on my phone and if yes, how can i lock back?
Thanks....
any_body said:
I dont know how ( i think i did it when i open oem lock [unlock]) but my FRP lock status is "FRP Unlock"
Can it cause to prevent me to install new roms on my phone and if yes, how can i lock back?
Thanks....
Click to expand...
Click to collapse
If you don't have Bootloader unlocked just go to Settings /System/ Developer options and switch off OEM Unlock (=FRP Unlock)
Btw, there is no need for panic because of unlocked FRP (and/or because of its warning while booting
zgfg said:
If you don't have Bootloader unlocked just go to Settings /System/ Developer options and switch off OEM Unlock (=FRP Unlock)
Btw, there is no need for panic because of unlocked FRP (and/or because of its warning while booting
Click to expand...
Click to collapse
Dear @zgfg ;
First of all thanks for your reply.
Oem Unlock is enabled (blue) and cant be in changeble status in Settings on my P9 (EVA L09)
any_body said:
Dear @zgfg ;
First of all thanks for your reply.
Oem Unlock is enabled (blue) and cant be in changeble status in Settings on my P9 (EVA L09)
Click to expand...
Click to collapse
You didn't state here but from your another post (you installed RR), you unlocked Bootloader and therefore obviously you had to unlock OEM/FRP
If you don't like unlocked FRP, then you first go back to stock Nougat, re-lock Bootloader and forget about rooting, installing custom ROMs, etc - for all that you must have unlocked Bootloader AND unlocked FRP
i need do UNLOCK FRP but on OREO i cant find setting UNLOCK OEM...
EDIT: sorry i read now "Chinese Brands dont have FRP." so i can install directly OPENKIRIN rom without FRP check . My bootloader is unlock
miksly said:
i need do UNLOCK FRP but on OREO i cant find setting UNLOCK OEM...
Click to expand...
Click to collapse
On the 'Chinese' Oreo there is no OEM unlock option in Developers Options, and OEM/FRP always stays unlocked - please consult HWOTA7 OP instructions.
OEM/FRP stays unlocked also if going to Open Kirin ROMs and back (if f
the required installation procedure is followed)
Check in Fastboot, maybe only your Bootloader is locked, and you just need to unlock Bootloader again in Fastboot
miksly said:
i need do UNLOCK FRP but on OREO i cant find setting UNLOCK OEM...
EDIT: sorry i read now "Chinese Brands dont have FRP." so i can install directly OPENKIRIN rom without FRP check . My bootloader is unlock
Click to expand...
Click to collapse
Ok, be careful to follow OpenKirin installation guide
Btw, there was a trick to re-enable hidden OEM Unlock option in Oreo, post in the HWOTA7 thread:
https://forum.xda-developers.com/p9...date-tool-hwota7-p9-eva-t3820849/post77296996
With root, open from eg MiXPlorer:
/hw_oem/prop/local.prop
find and uncomment the line (remove trailing character #):
ro.frp.pst=/dev/block/platform/hi_mci.0/by-name/frp
Then reboot, open Settings/System/Developer options and find the belowed OEM Unlock option (see attachments)

Question OnePlus 10 pro T-Mobile to global ?

Hello
Is there any method yet to unlock bootloader and convert OnePlus 10 pro T-Mobile to global ?
TechForEver said:
Hello
Is there any method yet to unlock bootloader and convert OnePlus 10 pro T-Mobile to global ?
Click to expand...
Click to collapse
Hy there,I can only tell you how to unlock bootloader you can try going to settings about phone buld number press it 7 times and you will be a developer then go to developer settings and open bootloader if it doesn't work try using fast boot method by writing this command fastboot oem unlock
Then it will unlock bootloader
PromiseKaunda said:
Hy there,I can only tell you how to unlock bootloader you can try going to settings about phone buld number press it 7 times and you will be a developer then go to developer settings and open bootloader if it doesn't work try using fast boot method by writing this command fastboot oem unlock
Then it will unlock bootloader
Click to expand...
Click to collapse
This not working with TMobile version
TechForEver said:
Hello
Is there any method yet to unlock bootloader and convert OnePlus 10 pro T-Mobile to global ?
Click to expand...
Click to collapse
FYI: NE2217 T-mobile (Carrier locked, BL locked) <== Dont Flash Any Other Region w/o reading.
!!! This is a HIGH RISK method of performing any form of modification, if you are on a T-Mobile ne2217 !!! There are unidentified files that your device might have conflict with, and cause a bootloop! Proceed at your own risk! You have been...
forum.xda-developers.com
BUT APPARENTLY OPPO SABOTAGED THE PROCESS. Try at your risk.

Question System has been destroyed & bootloader locked because of DSU Loader installing

Hi Guys
Need your assistance, its a complete mess here.
I found android 14 pre releases in developer options -> DSU Loader -> Installed GSM+ARM64. Thought it will install android 14 pre release (Saw in one of youtube video -
).
Post restart phone it went to system has been destoryed.
1. OEM unlock option was not checked (Bootloader locked)
2. Only booting in fastboot mode.
3. Flashing through EDL/ Flash Auth not working.
I can only think of unlocking bootloader may fix this issue but problem is bootloader is locked. Can't unlock it because oem unlock is not enabled under developer options.
Please help me bypass OEM unlock check so that I can unlock bootloader & probably flashing TWRP or Orange recovery will fix the problem
Thank you
This tutorial is for those who have the bootloader unlocked (see the video at 3 minutes 38, the padlock is open).
What did you want to do?
The phone is bricked, nothing to do with the locked bootloader, see a Xiaomi repair center.
Hi
I missed that it is for unlocked bootloader.
So if bootloader is locked, it should not update the partitions & if so it should roll back to original miui if it fails.
But instead it bricked my phone.
So if someone can help me unlock bootloader I can try flashing recovery & then rom.
Or suggest better option. service center people asked to replace motherboard.
hi!
If there is any way to fix it, unfortunately it is paid.
MJLH2V said:
hi!
If there is any way to fix it, unfortunately it is paid.
Click to expand...
Click to collapse
I am ok with paid service but not with the motherboard replacement
hi, is there way to flash this bricked phone please?
ketananxi said:
I am ok with paid service but not with the motherboard replacement
Click to expand...
Click to collapse
I can flash your phone.
ketananxi said:
Hi Guys
Need your assistance, its a complete mess here.
I found android 14 pre releases in developer options -> DSU Loader -> Installed GSM+ARM64. Thought it will install android 14 pre release (Saw in one of youtube video -
).
Post restart phone it went to system has been destoryed.
1. OEM unlock option was not checked (Bootloader locked)
2. Only booting in fastboot mode.
3. Flashing through EDL/ Flash Auth not working.
I can only think of unlocking bootloader may fix this issue but problem is bootloader is locked. Can't unlock it because oem unlock is not enabled under developer options.
Please help me bypass OEM unlock check so that I can unlock bootloader & probably flashing TWRP or Orange recovery will fix the problem
Thank you
Click to expand...
Click to collapse
It is imperative to unlock the bootloader with a xiaomi account where unlocking is authorized and associated with your smartphone. Without it, not worth it...
So unlock the bootloader and apply one of those countless FAQs that you'll find on XDA or youtube.
For me, settled in an hour.
Good luck,
Translated by Google...
BlitZ! said:
It is imperative to unlock the bootloader with a xiaomi account where unlocking is authorized and associated with your smartphone. Without it, not worth it...
So unlock the bootloader and apply one of those countless FAQs that you'll find on XDA or youtube.
For me, settled in an hour.
.
Click to expand...
Click to collapse
What is the use of this post since the user has the bootloader locked?

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