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I used to own an Xperai Sola. Before unlocking the bootloader I didn't know that I had to backup the DRM keys so that I can get back the "Bravia Engine" and "Download music Info option for Walkman" after the bootloader was unlocked. The information that we can backup our DRM keys came 6 months after I unlocked my bootloader.
These are my questions:
On Moto G 2nd gen do we need to backup something similar like the DRM keys of Xperia Sola?
What function do we lose when we unlock the bootloader other than Warranty? Does OS/Android update still work?
Does re-locking bootloader takes the phone back to its previous unlocked state?
@Falcon G
@vinaybaboo
@bhavin192
2. You can update phone after unlocking bl if you don't make changes to OS i.e. Xposed etc.
If you update even you have made changes to OS your phone will go into Bootloop
3. Yes Re locking and flashing stock firmware takes it to locked state
@NWKENT can answer this Questions more clearly
I´m also with similar doubts. I came from Samsung-way of unlocking bootloader.
Just to ensure if get it right, If I just put root on device, I still be able to update original rom from Motorola ?
It´s a pity we can change anything with xposed (in order to keep upgradable), bcos it´s small things we get used to, and we miss on stock roms...
Thanks,
leandrocn said:
I´m also with similar doubts. I came from Samsung-way of unlocking bootloader.
Just to ensure if get it right, If I just put root on device, I still be able to update original rom from Motorola ?
It´s a pity we can change anything with xposed (in order to keep upgradable), bcos it´s small things we get used to, and we miss on stock roms...
Thanks,
Click to expand...
Click to collapse
Thanks for your input.
Please @NWKENT @Falcon G @vinaybaboo can you kindly answer this question?
I guess if you wipe data and unnistall xposed and then flash stock recovery, you will be able to flash via OTA. No need to unroot
pleomaxell said:
I used to own an Xperai Sola. Before unlocking the bootloader I didn't know that I had to backup the DRM keys so that I can get back the "Bravia Engine" and "Download music Info option for Walkman" after the bootloader was unlocked. The information that we can backup our DRM keys came 6 months after I unlocked my bootloader.
These are my questions:
On Moto G 2nd gen do we need to backup something similar like the DRM keys of Xperia Sola?
What function do we lose when we unlock the bootloader other than Warranty? Does OS/Android update still work?
Does re-locking bootloader takes the phone back to its previous unlocked state?
@Falcon G
@vinaybaboo
@bhavin192
Click to expand...
Click to collapse
pleomaxell said:
Thanks for your input.
Please @NWKENT @Falcon G @vinaybaboo can you kindly answer this question?
Click to expand...
Click to collapse
1. No you don't need any DRM keys
2. U lose nothing rather than your warranty. Ota works if you don't install custom recovery and change the kernel
3. The new locked state is different than the OEM locked one
Falcon G said:
1. No you don't need any DRM keys
2. U lose nothing rather than your warranty. Ota works if you don't install custom recovery and change the kernel
3. The new locked state is different than the OEM locked one
Click to expand...
Click to collapse
Falcon G, thanks a lot for replying.
If the new locked state is different than the OEM locked one, then if a user wants to unlock the phone a second time, does he follow the same method he used to unlock the first time?
So, once the phone has been unlocked it is not possible to lock the phone to back to its OEM locked state?
pleomaxell said:
Falcon G, thanks a lot for replying.
If the new locked state is different than the OEM locked one, then if a user wants to unlock the phone a second time, does he follow the same method he used to unlock the first time?
So, once the phone has been unlocked it is not possible to lock the phone to back to its OEM locked state?
Click to expand...
Click to collapse
Yes you will be able to unlock the device.
And no you cannot get back to the original oem locked state
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 ?
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
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)
Hi,
This is gonna be very short :
As you can see, flashing custom roms/firmwares on (all) Xiaomi devices (after introducing project treble by Google) became a high risky business especially for noobs.
So here is some advice to avoid problems :
1- before flashing any firmware/custom rom : make sure you never choose relock bootloader in MiFlashTools (to avoid hard brick)
2- if you want to relock your bootloader : for example, if your device was shipped with a chinese firmware and you already have unlocked your bootloader, make sure you flash the same regional firmware (chinese one) before relocking it again. Any region mixing = hard brick ! (common error)
3- Mixing firmwares : if your device was shipped with a global/eea firmware and you want to flash a chinese firmware (for a specific rom) or vice versa, use fastboot one but again "don't relock your bootloader" (otherwise = hard brick)
4- tips : before using MiFlashTools, delete .bat files with relock and factory (if you want to keep your bootloader unlocked)
5- never buy a device with unlocked bootloader !
*********
About Anti-Rollback :
Mi 9 Lite / CC9 is not an anti-rollback enabled device, so here you can downgrade from a higher firmware version (10:Q) to the lower one (9ie) ... However, you can't relock your bootloader even if you use a firmware for the same region !
=> Downgrade = possible / Relocking the bootloader is not allowed for a lower android version +++
Conclusion :
NEVER RELOCK YOUR BOOTLOADER IN ALL CASES !
Thank you, very helpful! Can you provide a source about Mi 9 Lite/CC9 definitely NOT having anti-rollback enabled?
.M.D. said:
Thank you, very helpful! Can you provide a source about Mi 9 Lite/CC9 definitely NOT having anti-rollback enabled?
Click to expand...
Click to collapse
fastboot getvar anti
anti : 1 means anti-rollback disabled
read here
gringo80 said:
Mi 9 Lite / CC9 is not an anti-rollback enabled device, so here you can downgrade from a higher firmware version (10:Q) to the lower one (9ie) ... However, you can't relock your bootloader even if you use a firmware for the same region !
Click to expand...
Click to collapse
Are you sure about that? I just asked similar question (downgrading 11.3.9.0 -> 11.3.5.0) a few days ago, and people here stated that this is possible with relocking, and even without unlocking at all.
obiwanbartek said:
Are you sure about that? I just asked similar question (downgrading 11.3.9.0 -> 11.3.5.0) a few days ago, and people here stated that this is possible with relocking, and even without unlocking at all.
Click to expand...
Click to collapse
They are both 9ie !
Downgrade means from a higher android version to a lower one.
gringo80 said:
They are both 9ie !
Downgrade means from a higher android version to a lower one.
Click to expand...
Click to collapse
OK. So downgrading within one major android version is possible without relock, but going down with major android version requires unlock, right?
I have successfully downgraded from 10 to 9 without re-locking. so its possible
kingofmb said:
I have successfully downgraded from 10 to 9 without re-locking. so its possible
Click to expand...
Click to collapse
Ok, but did you unlocked it first? Or was it locked all the time?
obiwanbartek said:
OK. So downgrading within one major android version is possible without relock, but going down with major android version requires unlock, right?
Click to expand...
Click to collapse
Always Unlock your bootloader before taking any action in your device !
Flashing = Bootloader unlocked (always for your safety)
Staying always locked = Staying in Official MIUI (for your safety)
Read again the OP for more information.
gringo80 said:
4- tips : before using MiFlashTools, delete .bat files with relock and factory (if you want to keep your bootloader unlocked)
NEVER RELOCK YOUR BOOTLOADER IN ALL CASES !
Click to expand...
Click to collapse
this saved my xiaomi life, after few attempts i got some errors, then i rerun miflashtool, selected IMG and everything and as I forgot that i reran miflashtool it stayed on default "Clean all and lock" and i pressed flash, few seconds of mini hearth attacks as I realised my Xiaomi is now dead, luckily before starting anything I deleted all lock files from image rom folder and it said error: "could not find flash_all_relock.bat"
thanks once again, really best advice since u can forget to tick clean all and when you rerun MiFlashTool it goes back to default which is clean all and lock!
Hi, is the november 2018 version the latest version of MiFlashTools?