[INFO] Unlocked / Locked Bootloader ! | Good to know | - Transformer TF300T General

Hi !
To be clear for all the people !!!
As long as you keep locked bootloader - you can not install any custom recovery ( like CWM or TWRP ) !!!
Without custom recovery - your device is not able to run any custom rom !!!
WHY ?
with locked bootloader you can install only the officialy firmware ! ( or some custom updates, proper signed and does not include rewriting the boot or recovery partition )
when installing an official update will overwrite among others, the boot & recovery partition and system android - all this are in the blob files - ( you can see blob file ~ 820MB if you unpack twice officialy archive )
with unlocked bootloader you can rewrite boot & recovery partition & also system partition ;
practice by unlocking bootloader - first, we allowed to rewrite recovery partitions - so necessary to install a custom recovery and than an custom rom !
by installing an custom recovery - we must only to rewrite the boot partition & system partition - what it includes an custom rom !
To recap :
officialy firmware = blob file , which included : recovery , boot & system partition + ..... ;
custom rom = custom_rom.zip , which included : boot partition & system partition ;
custom recovery = CWM or TWRP , which included only recovery partition ;
On our device Asus TF300T :
recovery partition = twrp.blob or cwm.blob
boot partition = boot.blob ( ... also kernel.blob or or any other file that includes the boot partition .blob )
system partition = /system
A little help for those who remain stuck in boot ( bootloop ) after installing a custom rom :
by installing an custom rom - sure you have already installed an custom recovery !
available only to those who can access custom recovery ( after this step you will install officialy firmware ) : download and unpack officialy firmware archive -> you will get a new zip archive ! now copy this new archive in your device or microSD and flash it in recovery by wiping cache, dalvik-cache & factory-reset !
available if you can access fastboot mode ( after this step you will install officialy firmware ) : download and unpack twice officialy firmware archive and extract blob file ! , now copy blob file and navigate to ../sdk/android-sdk/platform-tools/ , open a cmd command and type:
> fastboot -i 0x0B05 flash staging blob
By installing an officialy firmware 4.1 , bootloader will be updated to JB bootloader !
...also you can try, my Custom Roms for Asus TF300T : 1° BlueAndroid & 2° [email protected]
( Roms based on Stock Asus Firmware : fast , stable & and high performance ! )
regards,
Surdu Petru

Thanks, should be made sticky.
Trimis de pe ASUS Transformer Pad TF300T

vap_66 said:
Thanks, should be made sticky.
Trimis de pe ASUS Transformer Pad TF300T
Click to expand...
Click to collapse
Hi !
Thanks, you're very kind...I do not think it's really that important
...sure, it is quite important for those who do not know - and cover a wide area, almost all android models go by the same principle !
Good luck !:good:

Asus make my tf300t useless now,i cant unlocked bootloader,always said unknown error and network problem....no custom rom for me is dont know what to do with it.anyone can help me?i use 4.1.1 10.4.2.13 from usa.

This thread deserves to be sticky. Please rate it as you see fit. I have given five stars as I see questions daily that are answered here. Very plainly I might add!
Thanks good work!

noriya said:
Asus make my tf300t useless now,i cant unlocked bootloader,always said unknown error and network problem....no custom rom for me is dont know what to do with it.anyone can help me?i use 4.1.1 10.4.2.13 from usa.
Click to expand...
Click to collapse
Hi !
You can try this :
- please, download the last firmware 10.4.2.18 SKU -> US from here !
- extract blob files , put your device in fastboot mode, enable USB debuging in Settings, connect USB cable and , in /platform-tools directory from android sdk type : > fastboot -i 0x0B05 flash staging blob
Now , after installation , try to redownload and install from here ! ( Utility , Version V7 -> Unlock Device App: Unlock boot loader. !)
( it say that is also for JB ! "※This tool now only works with TF300T ICS & JB of TW,US,WW CN SKU. It won’t work on other devices." )
Good luck !
- for use fastboot , you need to have already installed in your PC , android SDK ! :good:

noriya said:
Asus make my tf300t useless now,i cant unlocked bootloader,always said unknown error and network problem....no custom rom for me is dont know what to do with it.anyone can help me?i use 4.1.1 10.4.2.13 from usa.
Click to expand...
Click to collapse
I'm having the same issue. I can't unlock with the app. From what I have read, it has something to do with Asus not having the SN of some devices in the unlocking database.
Sent from my ASUS Transformer Pad TF300T using Tapatalk HD

Sparkimus said:
I'm having the same issue. I can't unlock with the app. From what I have read, it has something to do with Asus not having the SN of some devices in the unlocking database.
Sent from my ASUS Transformer Pad TF300T using Tapatalk HD
Click to expand...
Click to collapse
So bassicaly the only thing we can do is wait?

MikeTrifixion said:
So bassicaly the only thing we can do is wait?
Click to expand...
Click to collapse
I'm afraid you're right..Asus really need to do an update to app for unlock bootloader !

surdu_petru said:
I'm afraid you're right..Asus really need to do an update to app for unlock bootloader !
Click to expand...
Click to collapse
is anyone actually working on getting root for JB? or is all the dev just assuming people can unlock when they are on JB?

tjy8tim said:
is anyone actually working on getting root for JB? or is all the dev just assuming people can unlock when they are on JB?
Click to expand...
Click to collapse
Hi !
Ireally don't know ... I managed to unlock it from the time he was in android ics !
- but as you saw, Asus says it works even if you are in android JB ! ...

thanks for the info good for all

Sparkimus said:
I'm having the same issue. I can't unlock with the app. From what I have read, it has something to do with Asus not having the SN of some devices in the unlocking database.
Sent from my ASUS Transformer Pad TF300T using Tapatalk HD
Click to expand...
Click to collapse
That is correct.
First you must register your tablet. Soon after that the unlock utility will work.
Problem for me is that my serial number comes up as invalid. The number on the bottom of my box, warranty card, and sticker near dock port all match. I've had to submit my proof of purchase to them in order to add my serial number to the database that will allow me to register. Good times.
Anyone have similar issues with registration?
Sent from my VS910 4G using xda premium

downtownscience said:
That is correct.
First you must register your tablet. Soon after that the unlock utility will work.
Problem for me is that my serial number comes up as invalid. The number on the bottom of my box, warranty card, and sticker near dock port all match. I've had to submit my proof of purchase to them in order to add my serial number to the database that will allow me to register. Good times.
Anyone have similar issues with registration?
Sent from my VS910 4G using xda premium
Click to expand...
Click to collapse
I registered with the serial number listed in Android Settings on December 25th. However, the serial number on the box is different. As of today, unlock tool still has the Unknown Error message. Running latest .18 jelly bean. My registration with ASUS shows up as successful. We'll see...

giant25 said:
I registered with the serial number listed in Android Settings on December 25th. However, the serial number on the box is different. As of today, unlock tool still has the Unknown Error message. Running latest .18 jelly bean. My registration with ASUS shows up as successful. We'll see...
Click to expand...
Click to collapse
Have you contacted them yet?
Their support is priceless...I mean worthless. :-/
Sent from my VS910 4G using xda premium

downtownscience said:
Have you contacted them yet?
Their support is priceless...I mean worthless. :-/
Sent from my VS910 4G using xda premium
Click to expand...
Click to collapse
Nope, haven't tried yet. Last resort for me...

Hi!
In case anyone needs this information ! :good:

Registered. We'll see...
downtownscience said:
That is correct.
First you must register your tablet. Soon after that the unlock utility will work.
Problem for me is that my serial number comes up as invalid. The number on the bottom of my box, warranty card, and sticker near dock port all match. I've had to submit my proof of purchase to them in order to add my serial number to the database that will allow me to register. Good times.
Anyone have similar issues with registration?
Sent from my VS910 4G using xda premium
Click to expand...
Click to collapse
Just got done registering my *USED* TF300T. Hopefully soon I will be able to unlock it. <sigh>

Related

i want to unlock my boatloader acer iconia a500 to download another room !!

Hello guys .. need help plsss
the issue that i have acer iconia a500 that have i lately upgraded it to ice cream sandwich .. i did rooted it but actually after i upgraded it to ice cream sanwitch the wifi went terrible and only work 20 cm from the router .. if i go far than that it read out of range .. i tried to flash the boat loader to install other rooms to fix that wifi issue with no way .. as every time i load a room in the SD and sure i rename the folder to update.zip ... power off and volume down .. just a second the system start loading and then a sign of an android logo with a red triangle above it .. other guys recommend that i should first unlock my loader by ( Flashing a Patched Bootloader to the Acer Iconia A500 ) a thousand time i tried that according to the video on youtube but i can't log into APX mode .. i gone mad .. appreciate your help !
ahmed morsy said:
Hello guys .. need help plsss
the issue that i have acer iconia a500 that have i lately upgraded it to ice cream sandwich .. i did rooted it but actually after i upgraded it to ice cream sanwitch the wifi went terrible and only work 20 cm from the router .. if i go far than that it read out of range .. i tried to flash the boat loader to install other rooms to fix that wifi issue with no way .. as every time i load a room in the SD and sure i rename the folder to update.zip ... power off and volume down .. just a second the system start loading and then a sign of an android logo with a red triangle above it .. other guys recommend that i should first unlock my loader by ( Flashing a Patched Bootloader to the Acer Iconia A500 ) a thousand time i tried that according to the video on youtube but i can't log into APX mode .. i gone mad .. appreciate your help !
Click to expand...
Click to collapse
You do not need to rename anything dude, You should have installed a custom recovery if you flashed a rom already before, you go back to recovery, then go to the option to select zip from sdcard, find and select the file, that is it.
The android error screen you described is the stock recovery.
Also once you install one of the latest CWM recovery you can easily flash the bootloader.
how i can install recovery on original stock ????
lifeofcoding said:
You do not need to rename anything dude, You should have installed a custom recovery if you flashed a rom already before, you go back to recovery, then go to the option to select zip from sdcard, find and select the file, that is it.
The android error screen you described is the stock recovery.
Also once you install one of the latest CWM recovery you can easily flash the bootloader.
Click to expand...
Click to collapse
THANKS . for the reply
but actually i am dieing trying to install another recovery but the tab not accepting that . also i knew i should install a recovery in order to log through recovery and install another rom .. but i can .. i am still working with the original rom and sure it doesn't accepting any installation of other roms or recovery .. i believe i am still on the original stock and although i need to unlock my device and unlock my boot loader in order to install other recovery which will able me to install another roms.. or even tell me how to fix my WiFi issue .. or how to erase all data and go back to original stock .. i am helpless .. need guiding pls??
ahmed morsy said:
THANKS . for the reply
but actually i am dieing trying to install another recovery but the tab not accepting that . also i knew i should install a recovery in order to log through recovery and install another rom .. but i can .. i am still working with the original rom and sure it doesn't accepting any installation of other roms or recovery .. i believe i am still on the original stock and although i need to unlock my device and unlock my boot loader in order to install other recovery which will able me to install another roms.. or even tell me how to fix my WiFi issue .. or how to erase all data and go back to original stock .. i am helpless .. need guiding pls??
Click to expand...
Click to collapse
This is from another thread HERE.....b4 u do anything GET YOUR CPUID - please ask if anything is not clear
You may need to root first so u can delete the file at step 2
1. get yr cpuid and save it multiple places open a file explorer and go to /sys/firmware/fuse/acer_cpuid
2. then go to /system and rename/delete the "recovery-from-boot.p" file - this will prevent your custom recovery being overwritten with the stock recovery.
3. have your custom rom on yr ext SD card, ready to flash ONCE you've flashed the unlocked bootloader
4.To flash the v8 bootloader you need to use nvFlash and there are a couple ways if going about that...
a) manually by using the guide in the OP of civato's BL thread
b) using one of the auto tools like afterOTA or apxFlash - links also in that same post...
c) you'll also get to pick a custom recovery and it will be flashed at the same time - cwm 1.7.3 is recommended until you're running stable
d) From yr cpuid - generate yr sbk - how to do that is in the same OP
5) once flashed, boot straight to recovery
6) Do a nandroid backup then the wipes
7) Flash the rom
8) Reboot to recovery and wipe again
9) Job Done!
notes:
Everything you need to do this is in civato's BL OP - sorry can't post the link but its stickied in the Dev Forum
[GUIDE]A500/501/G100W-Installing ICS V8 UNL-BL & CWM Or back to HC BL(24-6-2012)
the afterOTA tool,
- saves all yr uid details etc in a txt file
- flashes v3 bootloader -
- it also installs the needed drivers too
- its pretty good at what it does...
seems some are having wifi issues with jellytime but the dev is working on this
you've done the right thing by asking questions before attempting anything, wish everyone was like you...if my post isn't clear then please let me know....for those of us used to the way things work with our Acer, its hard to remember how difficult it seemed when we were new!!
good luck
dibb
Sent from my GT-I9300 using Tapatalk 2
Sent from my A500 using Tapatalk 2
"recovery-from-boot.p"
dibb_nz said:
This is from another thread HERE.....b4 u do anything GET YOUR CPUID - please ask if anything is not clear
You may need to root first so u can delete the file at step 2
1. get yr cpuid and save it multiple places open a file explorer and go to /sys/firmware/fuse/acer_cpuid
2. then go to /system and rename/delete the "recovery-from-boot.p" file - this will prevent your custom recovery being overwritten with the stock recovery.
3. have your custom rom on yr ext SD card, ready to flash ONCE you've flashed the unlocked bootloader
4.To flash the v8 bootloader you need to use nvFlash and there are a couple ways if going about that...
a) manually by using the guide in the OP of civato's BL thread
b) using one of the auto tools like afterOTA or apxFlash - links also in that same post...
c) you'll also get to pick a custom recovery and it will be flashed at the same time - cwm 1.7.3 is recommended until you're running stable
d) From yr cpuid - generate yr sbk - how to do that is in the same OP
5) once flashed, boot straight to recovery
6) Do a nandroid backup then the wipes
7) Flash the rom
8) Reboot to recovery and wipe again
9) Job Done!
notes:
Everything you need to do this is in civato's BL OP - sorry can't post the link but its stickied in the Dev Forum
[GUIDE]A500/501/G100W-Installing ICS V8 UNL-BL & CWM Or back to HC BL(24-6-2012)
the afterOTA tool,
- saves all yr uid details etc in a txt file
- flashes v3 bootloader -
- it also installs the needed drivers too
- its pretty good at what it does...
seems some are having wifi issues with jellytime but the dev is working on this
you've done the right thing by asking questions before attempting anything, wish everyone was like you...if my post isn't clear then please let me know....for those of us used to the way things work with our Acer, its hard to remember how difficult it seemed when we were new!!
good luck
dibb
Sent from my GT-I9300 using Tapatalk 2
Sent from my A500 using Tapatalk 2
Click to expand...
Click to collapse
thanks a million for your kind help ..
actually i am still unable to unlock my boot-loader .. and load recovery in order to flash a new ROM .. but still unable to unlock my boot-loader although i tried acer recovery to load another recovery but still unsuccessful .. i found that i can't delete the file you mentioned "recovery-from-boot.p" even i used root manager to delete it by force while it says deleted after requesting permission but i found nothing deleted the cursed file "recovery-from-boot.p" still there !!!
i am going crazy for weeks now i am just trying to unlock my boot loader in-order to flash another Rom .. but can't log into recovery always same dam android with the yellow triangle and now another curse with this file that can't be deleted !!!
just tell me how i can overcome that curse and go into recovery by any mean .. some guys tell me that i have to write some command in the lynx language to pass that war )
any advices !! :crying::crying::crying::crying::crying::crying::crying:
your root is broke
It sounds like your 'root' is broke or you havent mounted system as writable in order to have any changes stick...so
download the zip file attached to this post...ICSRoot by blackthund3r
extract the files and run the .exe - once its done REBOOT your tab
I'm not sure of this root manager you spoke of...????
Most file explorers will have a setting that enables you to 'write' and make changes to the /system partition - so make sure this setting is enabled...Superuser should pop up and ask if you want to 'grant' your app 'permission' if you don't see this then:
check superuser app is installed on your tab,
You are on the Stock ICS bootloader you cannot use Acer Recovery Installer to install your recovery....you need the v8 first ok?
So root yr tab with ICS root, REBOOT and then run nvFlash to install your recovery/BL
still unable to install another recovery
dibb_nz said:
It sounds like your 'root' is broke or you havent mounted system as writable in order to have any changes stick...so
download the zip file attached to this post...ICSRoot by blackthund3r
extract the files and run the .exe - once its done REBOOT your tab
I'm not sure of this root manager you spoke of...????
Most file explorers will have a setting that enables you to 'write' and make changes to the /system partition - so make sure this setting is enabled...Superuser should pop up and ask if you want to 'grant' your app 'permission' if you don't see this then:
check superuser app is installed on your tab,
You are on the Stock ICS bootloader you cannot use Acer Recovery Installer to install your recovery....you need the v8 first ok?
So root yr tab with ICS root, REBOOT and then run nvFlash to install your recovery/BL
Click to expand...
Click to collapse
Thanks
i really appreciate your kind help >> but i am still unable to install another working recovery >> all i can do is installing updates for the original acer software >> but unable to install any other roms .. i gone mad ..:
i tried every thing .. done with rooting and confirmed .. used several ways to install another recovery ..like acer installer .. but nothing
also i used afterota v1.9 to install recovery and another bootlader but nothing change ..
i am currently android v 4.03 and working fine with installing all software and rooting goes fine with permissions stuff .. but after updating to the latest update my WIFI goes silly .. unable to find any network with scanning .. and detect my home wifi if it's 20 cm near it .. if far it says out of range !!!
plsssssss tell me how to install recovery to install another better rom to install this wifi issue or tell me about any bug fixer for that wifi issue .. i already tried all bug fixer on the market allll nonsense not working ..
dear all XDA DEVELOPERS .. I NEED YOUR KIND HELP PLSSSSS ...
ahmed morsy said:
Thanks
i really appreciate your kind help >> but i am still unable to install another working recovery >> all i can do is installing updates for the original acer software >> but unable to install any other roms .. i gone mad ..:
i tried every thing .. done with rooting and confirmed .. used several ways to install another recovery ..like acer installer .. but nothing
also i used afterota v1.9 to install recovery and another bootlader but nothing change ..
i am currently android v 4.03 and working fine with installing all software and rooting goes fine with permissions stuff .. but after updating to the latest update my WIFI goes silly .. unable to find any network with scanning .. and detect my home wifi if it's 20 cm near it .. if far it says out of range !!!
plsssssss tell me how to install recovery to install another better rom to install this wifi issue or tell me about any bug fixer for that wifi issue .. i already tried all bug fixer on the market allll nonsense not working ..
d ear all XDA DEVELOPERS .. I NEED YOUR KIND HELP PLSSSSS ...
Click to expand...
Click to collapse
oh dear...I'm sorry you're having so much trouble flashing a recovery...
a couple if things first -
1. everytime u update to a newer version then u WILL LOSE ROOT!
2. you cannot use the acer recovery installer on ics
3. wifi on stock ics is known for being problematic
4. flashing the unlocked bl/recovery Must be done in specific order if u don't follow the steps exactly it won't work
so, you can try a complete factory reset of yr tab by using the option in settings>backup and restore....u will lose all yr data and settings - but yr wifi should work....for awhile at least....
as far as flashing the unlocked bl goes - there s a guide in my sig how to
your other option is to rollback to HC using tdv4_rollback rom a link to that is also in the guide
,
im outta suggestions but wish u luck in getting itsorted
rgds dibb
still life is mass with that dam bootloader
dibb_nz said:
oh dear...I'm sorry you're having so much trouble flashing a recovery...
a couple if things first -
1. everytime u update to a newer version then u WILL LOSE ROOT!
2. you cannot use the acer recovery installer on ics
3. wifi on stock ics is known for being problematic
4. flashing the unlocked bl/recovery Must be done in specific order if u don't follow the steps exactly it won't work
so, you can try a complete factory reset of yr tab by using the option in settings>backup and restore....u will lose all yr data and settings - but yr wifi should work....for awhile at least....
as far as flashing the unlocked bl goes - there s a guide in my sig how to
your other option is to rollback to HC using tdv4_rollback rom a link to that is also in the guide
,
im outta suggestions but wish u luck in getting itsorted
rgds dibb
Click to expand...
Click to collapse
Hello Dear Ms..
Sorry for the usual disturbing ...well i am still doing my best .. i never quiet or get bored easily .. i knew that WIFI issues still not solved in most 4.03 version ..any way i still need some missing issues to get job done .. ( installing another ROM )
"PACKAGE SELECT:" V3-APX-PACKAGES.zip i need apx package working for the acer iconia a500 which able me to flash another recovery & boot loader that accept other roms than the original one
recovery-from-boot.ICSRootBackup.p how i can delete this CRAZY file .. i am already rooted and i used many file mangers to erase that file in order to be able to flash another recovery other than the orignal one .always says CAN'T BE DELETED .. HOW CAN I ??
another recovery .img and a bootloader for the acer iconia a500
i guess if i got those tools i mentioned i might be able to get the job done .. can u help ?
ahmed morsy said:
Hello Dear Ms..
Sorry for the usual disturbing ...well i am still doing my best .. i never quiet or get bored easily .. i knew that WIFI issues still not solved in most 4.03 version ..any way i still need some missing issues to get job done .. ( installing another ROM )
"PACKAGE SELECT:" V3-APX-PACKAGES.zip i need apx package working for the acer iconia a500 which able me to flash another recovery & boot loader that accept other roms than the original one
recovery-from-boot.ICSRootBackup.p how i can delete this CRAZY file .. i am already rooted and i used many file mangers to erase that file in order to be able to flash another recovery other than the orignal one .always says CAN'T BE DELETED .. HOW CAN I ??
another recovery .img and a bootloader for the acer iconia a500
i guess if i got those tools i mentioned i might be able to get the job done .. can u help ?
Click to expand...
Click to collapse
Your first hurdle to overcome is to delete that file you need to delete that file that causes the stock recovery to be restored. No point in doing anything beyond getting the files you need ready and getting the Acer drivers installed.
Are you using root explorer to delete that file? You need to click the button at the top that remounts the file system as r/w, by default the file system is mounted as r/o and will not allow you to make changes.
If that does not work, do me a favor: download this root check tool from the play store:
http://tinyurl.com/d6tj85a (Play Store link to root checker basic - free app)
That utility will check that the su binary is installed and that permissions are set. Give that tool a run and report back to us so we can get you running!
ahmed morsy said:
Hello Dear Ms..
Sorry for the usual disturbing ...well i am still doing my best .. i never quiet or get bored easily .. i knew that WIFI issues still not solved in most 4.03 version ..any way i still need some missing issues to get job done .. ( installing another ROM )
"PACKAGE SELECT:" V3-APX-PACKAGES.zip i need apx package working for the acer iconia a500 which able me to flash another recovery & boot loader that accept other roms than the original one
recovery-from-boot.ICSRootBackup.p how i can delete this CRAZY file .. i am already rooted and i used many file mangers to erase that file in order to be able to flash another recovery other than the orignal one .always says CAN'T BE DELETED .. HOW CAN I ??
another recovery .img and a bootloader for the acer iconia a500
i guess if i got those tools i mentioned i might be able to get the job done .. can u help ?
Click to expand...
Click to collapse
You do not need to delete "recovery-from-boot.ICSRootBackup.p" the root tool has renamed the boot.p file for you not sure why you cannot delete it though sounds strange!
Go take a look here at this guide and see if it helps any: http://forum.xda-developers.com/show....php?t=2049778
If you are using apxFlash tool go to the "Bundle Market" on the first screen and choose "Bundle No. 17" this is V8 bootloader with cwm 1.7.3 theres a good guide here showing this http://forum.xda-developers.com/showpost.php?p=32905041&postcount=20
http://a500bootloaderflash.tk
dibb_nz said:
You do not need to delete "recovery-from-boot.ICSRootBackup.p" the root tool has renamed the boot.p file for you not sure why you cannot delete it though sounds strange!
Go take a look here at this guide and see if it helps any: http://forum.xda-developers.com/show....php?t=2049778
If you are using apxFlash tool go to the "Bundle Market" on the first screen and choose "Bundle No. 17" this is V8 bootloader with cwm 1.7.3 theres a good guide here showing this http://forum.xda-developers.com/showpost.php?p=32905041&postcount=20
Click to expand...
Click to collapse
well million thanks . but still unable to download http://a500bootloaderflash.tk the bundle no 17 u mentioned cause a network error ( it says so )
u have a link not working (first link ) need an apx pakage URGENT
v8-cwm-1.7.3.apx
stucked at apx mode
dibb_nz said:
v8-cwm-1.7.3.apx
Click to expand...
Click to collapse
Hello
i did all you said latterly . but currently my tab stuck on apx screen ( green acer logo )
and the flash program stucked also like this
(( Flashing Bootloader (EBT) stage two - uploading image...))
more than 30 min .. i left it like this and i will go to work and hope u got me a solution !!!?
sounz like u need babsector.rar to reset yr partitions. check the unbrick guide in my sig ... the last couple posts show u how to use it....
Sent from my GT-I9300 using Tapatalk 2
dibb_nz said:
sounz like u need babsector.rar to reset yr partitions. check the unbrick guide in my sig ... the last couple posts show u how to use it....
Sent from my GT-I9300 using Tapatalk 2
Click to expand...
Click to collapse
Well Thanks'
but i still can't find a thread explaining how to delete partition inorder to flash another rom .. although kindly attach the babsector.rar tell me how to do it .. it's the last step i guess and i am dieing to do it right to flash another rom at laaaaaaaaaast ..pls
huh??? read appple's last post....there are 2 links in there explaining wot u need to do...
Sent from my GT-I9300 using Tapatalk 2
؟؟؟
dibb_nz said:
huh??? read appple's last post....there are 2 links in there explaining wot u need to do...
Sent from my GT-I9300 using Tapatalk 2
Click to expand...
Click to collapse
sorry can't understand what do u mean .. where to search or find it ???
ahmed morsy said:
sorry can't understand what do u mean .. where to search or find it ???
Click to expand...
Click to collapse
M8 .....post 11 read it....post 15 read that too...!!!!!!
i've answered yr questions at least twice now....and given u the links to wot u need...I cant do much more than that...
Sent from my GT-I9300 using Tapatalk 2
thanksss
dibb_nz said:
M8 .....post 11 read it....post 15 read that too...!!!!!!
i've answered yr questions at least twice now....and given u the links to wot u need...I cant do much more than that...
Sent from my GT-I9300 using Tapatalk 2
Click to expand...
Click to collapse
Hello ..
thanks and appreciated really .. why u r angry at me.
i am just a normal guy .. i am a banker .. i am not used with the abbreviation language u guys use here in the forum .. so some words get confused for me .. so u talk to me as if i am aware of all the stuff ... while i am a humble guy looking for info with you experts developers ..i am sorry if i bothered u .. but i can't get what u mean .. post 11 and 15 .. in what link or thread or subject .. i am not a fool but i am not an expert developers as u r .. so not used with the abbreviation ..
sorry again .. thx for ur kind help so far ((

[Q] Lenovo Ideapad bootloop and not flashable ?!

Hello Everyone ,
I got a Lenovo Ideapad k1 which previously had CWM 10 ( not sure which specific release ) , it was boot looping so i used khanning88's "K1_Stock_120109" in order to format everything and start over from stock , unfortunately i'm getting error on second partition (see picture in attachment for better explanation) . In terms of drivers , i got an unknown device named "Coprocessor" which doesn't accept any drivers to be installed , dont know if this has to do with our problem here or maybe not. APX driver original link from khanning88 is dead so i could be skeptical whether the files i got from googling arent the right ones. Finally i tried to change usb ports but it never made a difference. Thanks in advance and my apologies for writing too long post :angel: .
Regards
Kastella
Kastella said:
Hello Everyone ,
I got a Lenovo Ideapad k1 which previously had CWM 10 ( not sure which specific release ) , it was boot looping so i used khanning88's "K1_Stock_120109" in order to format everything and start over from stock , unfortunately i'm getting error on second partition (see picture in attachment for better explanation) . In terms of drivers , i got an unknown device named "Coprocessor" which doesn't accept any drivers to be installed , dont know if this has to do with our problem here or maybe not. APX driver original link from khanning88 is dead so i could be skeptical whether the files i got from googling arent the right ones. Finally i tried to change usb ports but it never made a difference. Thanks in advance and my apologies for writing too long post :angel: .
Regards
Kastella
Click to expand...
Click to collapse
I also am facing the same issue now but being optimistic that I can revive my K1. You will see if your device is being recognized by the PC under USB , thats the last part of the device manager just retract that part then if you see "NVIDIA usb something" you have the driver and the device has been recognized by the PC
@Kastella, I already revived my K1 just yesterday. We have the same problem totally the same error result just execpt for SDRAM CHIP, mine got 1 but I read somewhere else that it should be 0, and yours is 0. I also have that STOCK HC.
you're using now and that didn't work for me but instead I got a reimage of STOCK HC and that ROM worked. Let me know if you still,need that reimage STOCK HC
Sent from my MT27i using XDA Premium HD app
Thanks
johnwilliam_a_k_a_trash said:
@Kastella, I already revived my K1 just yesterday. We have the same problem totally the same error result just execpt for SDRAM CHIP, mine got 1 but I read somewhere else that it should be 0, and yours is 0. I also have that STOCK HC.
you're using now and that didn't work for me but instead I got a reimage of STOCK HC and that ROM worked. Let me know if you still,need that reimage STOCK HC
Sent from my MT27i using XDA Premium HD app
Click to expand...
Click to collapse
@johnwilliam_a_k_a_trash , Thank you sir , would you please send me the files , i really appreciate the help . Thanks in advance.
Regards
Kastella
Kastella said:
@johnwilliam_a_k_a_trash , Thank you sir , would you please send me the files , i really appreciate the help . Thanks in advance.
Regards
Kastella
Click to expand...
Click to collapse
Here is the stock HC
https://drive.google.com/folderview?id=0BwP7NBy-L-ugdGdrQlA2MTJxYXM&usp=sharing
Here is the reimage stock HC which worked for me
https://drive.google.com/file/d/0BwP7NBy-L-ugN3R1QjJGM05oeVE/edit?usp=sharing
Any problems in downloading let me know soon. Don't forget to hit THANKS BUTTON if you appreciate the help
steps
@johnwilliam_a_k_a_trash I downloaded the reimage , i tried to open all 3 flash files ; none opened except the old_flash which also failed . I'm not sure how to do it properly , would you kndly tell me the steps that anyone should follow , thanks again and hope to hear from u again .
Regards
Kastella
steps
@johnwilliam_a_k_a_trash I downloaded the reimage , i tried to open all 3 flash files ; none opened except the old_flash which also failed . I'm not sure how to do it properly , would you kndly tell me the steps that anyone should follow , thanks again and hope to hear from u again .
Regards
Kastella
Kastella said:
@johnwilliam_a_k_a_trash I downloaded the reimage , i tried to open all 3 flash files ; none opened except the old_flash which also failed . I'm not sure how to do it properly , would you kndly tell me the steps that anyone should follow , thanks again and hope to hear from u again .
Regards
Kastella
Click to expand...
Click to collapse
Just keep pushing hehehhe seriously that's how I think it is, be persistent. If you think you had for the day do it again tonight or tomorrow just don't give up and be optimistic Yes the "flash_old" also worked for me and the "flash" didn't work for me too. I will search some K1 STOCK HC for you.
Sent from my MT27i using XDA Premium HD app
I have the same issue. Going from unsuccessfull JB flash I tried this reimage like 20 times. It went through the partition 2 formating once. But never again. Any tips?
Ovecka_m2 said:
I have the same issue. Going from unsuccessfull JB flash I tried this reimage like 20 times. It went through the partition 2 formating once. But never again. Any tips?
Click to expand...
Click to collapse
Just keep pushing it soon K1 will give up. I already brick mine 6 or 7 times due to upgrading to CM10.1 but I akways ended up bricked. Right now I am on brick state and I am giving up on upgrading to CM10.1.
Sent from my MT27i using XDA Premium HD app
was hederene
Thanks for a cheer-up . How many tries at its worst did it take for you?
S
Ovecka_m2 said:
Thanks for a cheer-up . How many tries at its worst did it take for you?
Click to expand...
Click to collapse
It depends. There are events w/in 10 attempts the worst is I have never counted. The problem with K1 is there are very very less developersworking, 3 to be exact who I know, to support this device. I also am hoping that someone would make an APX Flashtool like the one used for Acer A500 or attempting to manually flash each partition like the Lenovo TPT and other devices, for the worst case one I have seen in YouTube short circuit a chip. But none of those I mentioned nobody tried or worked on. Which really shows people, specially developers, are not that interested in Lenovo.
BTW, go to CM10.1 for Lenovo K1 thread ti-pich shared his HC rooted + CWM that ROM was created by Khanning just type on google search CM10.1 K1
Sent from my MT27i using XDA Premium HD app
I've already downloaded and tried all the available roms Stock ICS, Stock HC, CM10.1, JB AOSP, .... they all end with the same error. I am now on 50+ tries with the reimage.
After many more than hundred of tries I've given up all hope. The tablet goes to trash. I've tried three different computers, other USB slots and all the available ROMs with no progress whatsoever. Let's hope others will have better luck.
Sounds like a HW problem to me.
Instead of flashing a whole Rom, you can verify parts of the sdram by reading/writing them "raw".
There's the option "rawdeviceread" for nvflash which gives you access to every single 4k block of the sdram.
And there's "getpartitiontable" to read the partitiontable to find out, where the partitions are located.
I do not own an original K1, but a slightly modified german variant (P9516). It's so similar to the K1, that l can use the same ROM (kaschemme's) as you. Just the flashing is a bit different (because of the sbk).
My friend YLG80 (www.avi-plus.com) has created a nice image to show, what the partitions on my device look like ( http://www.avi-plus.com/media/kunena/attachments/211/partitions_LT-P9516.png). I think that it is pretty the same on the K1.
You can read this thread ( http://www.avi-plus.com/repair-tips.../nvflash-with-the-medion-lt-p9516-tablet.html) to get more information on this stuff.
But don't just copy/paste the commands from the thread without understanding what you're doing!
For example: for flashing the K1 you will need a sbk, but for flashing the p9516, I need a special "blob"-file.
Maybe you can "rawread" the BCT partition to see, if the blocks are at least readable.
If it works,you can try to write some zeros to the bct, to see, if it is writeable.
If that works, you can maybe write a backup of someones BCT over yours.
If you're living in germany, you can send your bricked device to me
Ameisentaetowierer said:
Sounds like a HW problem to me.
Instead of flashing a whole Rom, you can verify parts of the sdram by reading/writing them "raw".
There's the option "rawdeviceread" for nvflash which gives you access to every single 4k block of the sdram.
And there's "getpartitiontable" to read the partitiontable to find out, where the partitions are located.
I do not own an original K1, but a slightly modified german variant (P9516). It's so similar to the K1, that l can use the same ROM (kaschemme's) as you. Just the flashing is a bit different (because of the sbk).
My friend YLG80 (www.avi-plus.com) has created a nice image to show, what the partitions on my device look like ( http://www.avi-plus.com/media/kunena/attachments/211/partitions_LT-P9516.png). I think that it is pretty the same on the K1.
You can read this thread ( http://www.avi-plus.com/repair-tips.../nvflash-with-the-medion-lt-p9516-tablet.html) to get more information on this stuff.
But don't just copy/paste the commands from the thread without understanding what you're doing!
For example: for flashing the K1 you will need a sbk, but for flashing the p9516, I need a special "blob"-file.
Maybe you can "rawread" the BCT partition to see, if the blocks are at least readable.
If it works,you can try to write some zeros to the bct, to see, if it is writeable.
If that works, you can maybe write a backup of someones BCT over yours.
If you're living in germany, you can send your bricked device to me
Click to expand...
Click to collapse
Wow! How do you operate nvflash on CMD? I can't get the partitiontable.txt I always get an error. I also mentioned/quoted you on CM 10. 1 for K thanks
Sent from my GT-I9500 using XDA Premium HD app
In fact, there is a blob file for K1 as well. the nvflash version provided in your thread doesn't accept sbk parameter (just like all the new K1 nvflashes) but it works with the K1 blob.
Unfortunately, --getpartitiontable always ends up with "partition table is required".
Unfortunately I can't see the first command on your screenshot.
It should be something like:
nvflash --getpartitiontable partitiontable.txt --bl flash.bct --go
Not sure, if your bootloaderfile really is named "flash.bct", as I currently haven't downloaded your nvflash toolset.
Ameisentaetowierer said:
Unfortunately I can't see the first command on your screenshot.
It should be something like:
nvflash --getpartitiontable partitiontable.txt --bl flash.bct --go
Not sure, if your bootloaderfile really is named "flash.bct", as I currently haven't downloaded your nvflash toolset.
Click to expand...
Click to collapse
bootloader file is "bootloader.bin". I moved flash.bct, flash.cfg and HC and JB bootloaders to my nvflash folder. First, I have to load the bootloader mode, then and only then can I use the --r parameter, otherwise it will freeze on [resume mode].
Looks like I'm in the same predicament as Ovecka_m2 & Kastella. My suspicion is that a bad block has developed on the tablet's internal storage (eMMC?). I've seen references to tools on better supported tablets such as the Acer A500 (search for BabSector.rar) and ASUS TF101. Has anyone considered trying to modify one of these tools to work with the K1? Otherwise, I fear that this tablet is a write-off.

Proper Bootloader Unlock Guide for CM12.1 (A501CG)[Asus Zenfone5-T00J-WW] (NO FREEZE)

Hello,
I can see many of users are facing problems in unlocking bootloader. Here is proper guide to unlock bootloader. These steps are tried by me on 3 zenfone WW T00J and they are working like charm. As I don't know state of your bootloader (Locked/unlocked/messed up) so I will be starting from beginning where your bootloader is restored to default state before unlocking. Since I am using Cyanogenmod 12.1 ROM So I will suggest you flash it first due to its kernel.img , boot.img etc once it boots , after that u can flash other roms.
DO IT ON YOUR OWN RISK. THESE STEPS ARE FOR ZENFONE 5 A501CG T00J WW(from India) 1.6Ghz 2GB 16/8GB .
However Same procedure applies with different SKU like TW CN etc. All u need to use your own firmware files.
I assume You Have Android Debug Bridge v.1.0.32.zip And All Intel Drivers Installed. If not Try Google or Other ROM threads to download.
STEPS TO BRING YOUR BOOTLOADER TO LOCKED STATE, THIS WILL NEED FLASHING OF STOCK ROM AND ALL YOUR DATA WILL BE ERASED ON INTERNAL STORAGE SO BACKUP FIRST.
Download UL-ASUS_T00F-WW-2.22.40.54-user.zip From ASUS WEBSITE.
Steps -
1). Extract boot.img, fastboot.img, and recovery.img from the zip downloaded from Above Asus Firmware zip file.
Place them in ADB folder. Also Copy the whole zip to same adb folder.
OPEN ADB prompt by shift + right click and select open command window here in same folder.
2). Boot your phone in Fastboot mode and do exactly as following,
fastboot flash fastboot fastboot.img
fastboot reboot-bootloader
fastboot erase cache
fastboot erase userdata
fastboot erase data
fastboot erase system
fastboot flash boot boot.img
fastboot flash recovery recovery.img
3). Now select recovery from fastboot menu and press power to boot into recovery mode.
4). Press and hold volume down then tap volume up at dead droid splash for recovery menu.
Select adb sideload
and type
adb sideload UL-ASUS_T00F-WW-2.22.40.54-user.zip
Wait Until it downloads on your phone and is installed. It usually takes 20-25 minutes to boot into phone. As this is the first time phone is booting after complete format expect it time taking.
Boot into Phone And Congrats You Have Locked your bootloader properly which is ready to unlock properly
Now Flash This Cyanogenmod as said step by step and boot into it and you will experience no freeze issue. After booting you can even change your rom.
http://forum.xda-developers.com/general/rooting-roms/rom-cyanogenmod-12-1-asus-zenfone-5-t3252789
Enjoy.
Regards
Press Thanks If i Helped. xD
@venturajpo , @pintuvirani , @Fernando0258 , @eragon21
I disagree with this information.
From my perspective screen freezes and reboots happening due to device revision. What i mean is there are few different revisions of Zenfone 5 models.
For example, boot unlock files is compatible with first revision so second revision will get freezes.
It is not fault of bootloader unlock.
Dear maggi I too own the same device as you (same model, cpu speed and ram cap) expect I brought mine form dubai and I experience freeze issues quite often even on stock after un-locking bootloader yet I unlock mine from. 78 stock rom so I'll try your method and see what's happens :fingers-crossed:
what about the no camera problem that some users are experiencing
herecomesmaggi said:
Hello,
I can see many of users are facing problems in unlocking bootloader. Here is proper guide to unlock bootloader. These steps are tried by me on 3 zenfone WW T00J and they are working like charm. As I don't know state of your bootloader (Locked/unlocked/messed up) so I will be starting from beginning where your bootloader is restored to default state before unlocking. Since I am using Cyanogenmod 12.1 ROM So I will suggest you flash it first due to its kernel.img , boot.img etc once it boots , after that u can flash other roms.
DO IT ON YOUR OWN RISK. THESE STEPS ARE FOR ZENFONE 5 A501CG T00J WW(from India) 1.6Ghz 2GB 16/8GB .
However Same procedure applies with different SKU like TW CN etc. All u need to use your own firmware files.
I assume You Have Android Debug Bridge v.1.0.32.zip And All Intel Drivers Installed. If not Try Google or Other ROM threads to download.
STEPS TO BRING YOUR BOOTLOADER TO LOCKED STATE, THIS WILL NEED FLASHING OF STOCK ROM AND ALL YOUR DATA WILL BE ERASED ON INTERNAL STORAGE SO BACKUP FIRST.
Download UL-ASUS_T00F-WW-2.22.40.54-user.zip From ASUS WEBSITE.
Steps -
1). Extract boot.img, fastboot.img, and recovery.img from the zip downloaded from Above Asus Firmware zip file.
Place them in ADB folder. Also Copy the whole zip to same adb folder.
OPEN ADB prompt by shift + right click and select open command window here in same folder.
2). Boot your phone in Fastboot mode and do exactly as following,
fastboot flash fastboot fastboot.img
fastboot reboot-bootloader
fastboot erase cache
fastboot erase userdata
fastboot erase data
fastboot erase system
fastboot flash boot boot.img
fastboot flash recovery recovery.img
3). Now select recovery from fastboot menu and press power to boot into recovery mode.
4). Press and hold volume down then tap volume up at dead droid splash for recovery menu.
Select adb sideload
and type
adb sideload UL-ASUS_T00F-WW-2.22.40.54-user.zip
Wait Until it downloads on your phone and is installed. It usually takes 20-25 minutes to boot into phone. As this is the first time phone is booting after complete format expect it time taking.
Boot into Phone And Congrats You Have Locked your bootloader properly which is ready to unlock properly
Now Flash This Cyanogenmod as said step by step and boot into it and you will experience no freeze issue. After booting you can even change your rom.
http://forum.xda-developers.com/general/rooting-roms/rom-cyanogenmod-12-1-asus-zenfone-5-t3252789
Enjoy.
Regards
Press Thanks If i Helped. xD
@venturajpo , @pintuvirani , @Fernando0258 , @eragon21
Click to expand...
Click to collapse
@herecomesmaggi, I think what tank0412 says is true. I have A501CG 1.6Ghz model. First, I used the bootloader provided in the first post of rr thread. I faced screen freezes while playing COC (note: I never faced screen freeze outside games). Then, I followed the quanganh's method of copying if.bin. Screen freeze is still there, but the frequency is greatly reduced. Also, the last time I faced screen freeze I was playing fm and the fm kept playing despite screen freeze. Which means that the os itself didn't get stuck just the screen froze. What could I say from this is, there are several versions of bootloader and using the right one will solve the screen freeze problem. Or if we could find how the bootloader unlocker works.. May be ASUS uses parts from different manufacturers and they are somehow linked to bootloader(It seems unlikely. Just an idea as nothing else is working!).
tank0412 said:
I disagree with this information.
From my perspective screen freezes and reboots happening due to device revision. What i mean is there are few different revisions of Zenfone 5 models.
For example, boot unlock files is compatible with first revision so second revision will get freezes.
It is not fault of bootloader unlock.
Click to expand...
Click to collapse
May be what you are saying is true. But my method solve problems for 3 zenfones that were unlocked. Please feel free to search and provide exact problem source. I think Asus company itself is in play here.. ;D
Sent from my ASUS_T00J using Tapatalk
eragon21 said:
@herecomesmaggi, I think what tank0412 says is true. I have A501CG 1.6Ghz model. First, I used the bootloader provided in the first post of rr thread. I faced screen freezes while playing COC (note: I never faced screen freeze outside games). Then, I followed the quanganh's method of copying if.bin. Screen freeze is still there, but the frequency is greatly reduced. Also, the last time I faced screen freeze I was playing fm and the fm kept playing despite screen freeze. Which means that the os itself didn't get stuck just the screen froze. What could I say from this is, there are several versions of bootloader and using the right one will solve the screen freeze problem. Or if we could find how the bootloader unlocker works.. [emoji14] May be ASUS uses parts from different manufacturers and they are somehow linked to bootloader(It seems unlikely. Just an idea as nothing else is working!).
Click to expand...
Click to collapse
If you can please refer to my earlier post where I cried for help for same problem. In COC when i searched 10-15+ villages for loot it definitely freezed. I tried with all kernels methods, windroica, zenphone blog etc etc. Then I found this method. Please follow it and install the rom as instructed then please report. May be this could help you.
P. S. I am sure it will help you.
Sent from my ASUS_T00J using Tapatalk
jiyaad1 said:
Dear maggi I too own the same device as you (same model, cpu speed and ram cap) expect I brought mine form dubai and I experience freeze issues quite often even on stock after un-locking bootloader yet I unlock mine from. 78 stock rom so I'll try your method and see what's happens :fingers-crossed:
Click to expand...
Click to collapse
Please try it, I know this will work. Mine fingers are crossed too.. I don't know technical problems but I know that this method solve freeze and random reboots of 3 zenfones that were useless after bootloader unlock.
Sent from my ASUS_T00J using Tapatalk
One question and maybe noob.
What is the difference between the unofficial bootloader unlock and the official
If i unlock with the official unlocker and after install CM it should work, or not?
herecomesmaggi said:
If you can please refer to my earlier post where I cried for help for same problem. In COC when i searched 10-15+ villages for loot it definitely freezed. I tried with all kernels methods, windroica, zenphone blog etc etc. Then I found this method. Please follow it and install the rom as instructed then please report. May be this could help you.
P. S. I am sure it will help you.
Sent from my ASUS_T00J using Tapatalk
Click to expand...
Click to collapse
okay sure. I'll try.
venturajpo said:
One question and maybe noob.
What is the difference between the unofficial bootloader unlock and the official
If i unlock with the official unlocker and after install CM it should work, or not?
Click to expand...
Click to collapse
Mine didn't work that's why i posted these steps. Hope it could work for you. No dev yet found a true cause of this mysterious freeze issue.
did you try this solution in the 16gb variant? because i think most 16gb users experience the no camera bug
YujinYuz said:
did you try this solution in the 16gb variant? because i think most 16gb users experience the no camera bug
Click to expand...
Click to collapse
Yes I have 16GB Variant and I have am not having any no camera bug.. Btw what is it.?? My asus is, 1.6Ghz,16GB, 2GB, T00J WW
herecomesmaggi said:
Yes I have 16GB Variant and I have am not having any no camera bug.. Btw what is it.?? My asus is, 1.6Ghz,16GB, 2GB, T00J WW
Click to expand...
Click to collapse
yes. my phone's specs are 1.6Ghz 16GB ROM and 2GB RAM except my model number is T00J-D
YujinYuz said:
yes. my phone's specs are 1.6Ghz 16GB ROM and 2GB RAM except my model number is T00J-D
Click to expand...
Click to collapse
So that means when u unlock bootloader camera doesn't work.. If I am right then, It shouldn't be working with any of playstore camera app either as there is no hardware detected type of situation.
Have you tried to reach asus technicals in this regard.?? Try asking them ur official bootloader unlock method.
And by the way have tried my method..?
herecomesmaggi said:
So that means when u unlock bootloader camera doesn't work.. If I am right then, It shouldn't be working with any of playstore camera app either as there is no hardware detected type of situation.
Have you tried to reach asus technicals in this regard.?? Try asking them ur official bootloader unlock method.
And by the way have tried my method..?
Click to expand...
Click to collapse
can i see a screenshot of the model number of your phone?
yes, any camera app doesnt work on my phone. i havent tried contacting asus yet.
YujinYuz said:
can i see a screenshot of the model number of your phone?
yes, any camera app doesnt work on my phone. i havent tried contacting asus yet.
Click to expand...
Click to collapse
Here it is
herecomesmaggi said:
Here it is
View attachment 3602829
Click to expand...
Click to collapse
hmm. it seems that you have a different device model than i have. no wonder i get a camera not found error.
YujinYuz said:
hmm. it seems that you have a different device model than i have. no wonder i get a camera not found error.
Click to expand...
Click to collapse
My device is T00J, WW But after flashing cyanogenmod it shows T00F as it is in its build.prop
herecomesmaggi said:
My device is T00J, WW But after flashing cyanogenmod it shows T00F as it is in its build.prop
Click to expand...
Click to collapse
oh.. okay. i guess it's still different from mine coz my model is T00J-D

Yoga Tab 2 1050F - Need help to downgrade to KitKat

Hi everybody,
[First of all I'm french, so sorry for my bad english...]
For the past 3 hours I've tried to downgrade my tablet from Android 5 to Android 4.
I've followed the instructions, but I'm "stuck" while I'm flashing with Flash Tool lite (v. 5.4.2.0), my tablet reboot on the desktop during the process.
What I've done so far ?
I've installed :
- PhoneFlashTool_4.4.4.1_external_win32.exe
- iSocUSB-Driver-Setup-1.2.0.exe
- IntelAndroidDrvSetup1.5.0.exe
Then, I understood that before to go back to KitKat, I needed to change the bios (return to kitkat bios). I used : restore-kitkat-bios-830-1050-v2
The procedure gone well (I think).
After that, I ran PhoneFlashTool_4.4.4.1, and I've ticked "force sparcing" to change size to 500mb, but when I've connected my tablet in USB Port (while it's on the droidboot screen), it didn't recognize my device...
So I've installed PlatformFlashToolLite_5.4.2.0_win32, instead.
With this version of the program my tablet is recognized, the flash started, but during the procedure my tablet reboot to the desktop, and after few minutes the connection is lost, and I've got an error message "flash failed".
I've tried to flash with debug usb tick, and not tick, same issue.
Few more info :
My tablet isn't rooted.
My computer is on Windows 7 64 bits Home Premium.
I don't really know what to do.
Is there something I did wrong ?
You need the kitkat rom to flash after you flash the bios
In the rom zip will be a flash.xml you select in phoneflashtool to flash the tab
Sent from my SM-G930F using Tapatalk
Thanks for your response pug1 !
I forgot to mention in my thread that yes, I click "browse" and select flash.xml from the "target_bin" folder.
Here's what I got in Flash tool Lite's box :
03/28/16 11:26:19.699 INFO : Flash file C:\Users\Daemon_Feunoyr\Downloads\Android\Yoga Tab 2\kitkat-YT2-1050F_S0198_150422_ROW\target_bin\flash.xml [Default] loaded
03/28/16 11:26:29.502 INFO : [Port 0/1/4] Start flashing the flash configuration with dnx_os start state for Baytrail1xxxxxxx
03/28/16 11:26:29.502 INFO : [Port 0/1/4] Reboot device Baytrail1xxxxxxx with Fastboot...
03/28/16 11:26:29.611 INFO : [Port 0/1/4] Starting flash ...
03/28/16 11:29:30.640 INFO : [Port 0/1/4] Device lost on 0/1/4
Click to expand...
Click to collapse
Go to http://forum.xda-developers.com/thi...-lenovo-yoga-tab-2-1050f-softbricked-t3319124 post 7 and there is all the files you need
Thanks, but I already have these archives :
- restore-kitkat-bios-830-1050-v2 (restore-kitkat-bios-830-1050-v2.exe)
- yogatablet2-flash-tools-20150812 (IntelAndroidDrvSetup1.9.0, iSocUSB-Driver-Setup-1.2.0, PhoneFlashTool_4.4.4.1_external_win32)
- kitkat-YT2-1050F_S0198_150422_ROW (target_bin (file), tools file (with the programs to flash...)
Isn't it enough ?
Do you think I need one of the file you posted on the other thread ? (I ask, because I have a very bad internet connection...)
I think I found what I did wrong.
I pressed volume up & power to go to the droidboot screen, instead of volume up and down + power (fastboot).
I succeed to flash KK with the tab in fastboot :victory:
Thanks for your time !
Now I need to look into how to root the tab.
To unlock the bootloader go here http://forum.xda-developers.com/thi...yoga-2-how-to-unlock-bootloader-t3320327,post 4
Does it means that I need to unlock the boatloader to root the tab ?
Yes, unlock the bootloader then use this. http://tinyurl.com/zoapeyh for permanent TWRP
Do not forget to update to lollipop BEFORE doing the boot unlock and TWRP
OK, thanks. I hope it's "easier" than downgrade :s
Can you do me a favor ? ^^"
I read your post on the other thread, and I'm confused... I don't really know what I should type in cmd.
Can you highlight (quotation marks, or put them in bold) the commands that I need to type, please ?
Open a CMD window on your computer and type cd c:\ to get to just a c prompt.
Then type fastboot flash ESP This bit then should read the full location of the unzipped file that is patched.
An example like mine is fastboot flash ESP c:/adb/1050f-esp-patched.img , this is how I did mine and I have an unlocked bootloader and permanent TWRP
Click to expand...
Click to collapse
Daemon_Feunoyr said:
OK, thanks. I hope it's "easier" than downgrade :s
Can you do me a favor ? ^^"
I read your post on the other thread, and I'm confused... I don't really know what I should type in cmd.
Can you highlight (quotation marks, or put them in bold) the commands that I need to type, please ?
Click to expand...
Click to collapse
Do the upgrade to lollipop first then come back here for the rest of the instructions.
After you do the upgrade and unlock the bootloader ,have a read here. http://forum.xda-developers.com/android/development/recovery-t3322990, it might be easier,the post is by surdu_petru.
I don't want to go back to Lollipop, there are too much bugs :/ (wifi, the screen flicker on internet browsers, sometimes the tablet reboot for no reason, etc.).
I had enough of Lollipop...
Anyway, I want to stay on KK.
Daemon_Feunoyr said:
I don't want to go back to Lollipop, there are too much bugs :/ (wifi, the screen flicker on internet browsers, sometimes the tablet reboot for no reason, etc.).
I had enough of Lollipop...
Anyway, I want to stay on KK.
Click to expand...
Click to collapse
O.K, like you I had many problems with lollipop but after doing all this plus one or two other mods,my 1050 is very fast and stable,BUT it might not be the same for others.
Maybe one day, when I'll be motivate lol I'm "exhausted" by my 4 hours of struggle with the downgrade XD
(I suppose there are lots of manip to do for lollipop to be stable =_=), and/or when Lenovo will release a stable version of Lollipop.
How do I root from KK ?
In tried with Kingo Root, but it stucks à 10 % for maybe ~ 10 minutes.
EDIT : Can I use this method ? (though I'm not sure I understand everything... x_x)
Daemon_Feunoyr said:
Maybe one day, when I'll be motivate lol I'm "exhausted" by my 4 hours of struggle with the downgrade XD
(I suppose there are lots of manip to do for lollipop to be stable =_=), and/or when Lenovo will release a stable version of Lollipop.
How do I root from KK ?
In tried with Kingo Root, but it stucks à 10 % for maybe ~ 10 minutes.
EDIT : Can I use this method ? (though I'm not sure I understand everything... x_x)
Click to expand...
Click to collapse
I am not sure but I don't think you can on Kitkat
No root at all on KK ?
Edit : My tab flickers in games -_-"
I might reconsider my decision to not upgrade to Lollipop... o/
Where can I find the rom without the two last updates ? (december and march... problems appeared with these 2 patchs...)
Edit 2 : Is that one of the 2 files you uploaded ?
If so, which one do I have to DL ?
YT2-1050F_USR_S000198_1504220313_WW21_ROW (1).zip
YT2-1050F_USR_S100031_1506111400_WW52_ROW-(L).zip
S100031. You will then have 3 update to get to S100256. I have zero problems on latest update
Sent from my SM-G930F using Tapatalk
Just remember if you upgrade and then root,you will not be able to take any more updates.
But saying all that, it's easy to get back to KitKat and start all over again.
OK, thanx both of you. :good:
I'll download YT2-1050F_USR_S100031_1506111400_WW52_ROW-(L).zip.
It's the same procedure with PhoneFlashTool/FlashToolLite ? :
- Vol up & down + Power (Fastboot mode)
- connect the tablet to the computer
- In PhoneFlashTool click browse and select flash.xml from the "target_bin" folder
- start to flash ?
For the Lollipop updates (not sure I want to (re)install them), if I wait a little bit before root my device, I guess it will show via OTA, no ?
Daemon_Feunoyr said:
OK, thanx both of you. :good:
I'll download YT2-1050F_USR_S100031_1506111400_WW52_ROW-(L).zip.
It's the same procedure with PhoneFlashTool/FlashToolLite ? :
- Vol up & down + Power (Fastboot mode)
- connect the tablet to the computer
- In PhoneFlashTool click browse and select flash.xml from the "target_bin" folder
- start to flash ?
For the Lollipop updates (not sure I want to (re)install them), if I wait a little bit before root my device, I guess it will show via OTA, no ?
Click to expand...
Click to collapse
Just do an ota of the first update to lollipop and then refuse the rest.

SOLVED:Stuck at PIN input, then reboots

Well, I f*cked up.
Fastboot works, I can flash stock rom via Xiaomi Flash. Flashing completes without any problems. A notification about encypting phone shows up, at 3% it jumps to 100% and resumes boot. Now after each boot, phone freezes at "input your sim pin" and reboots. Over and over again. What can I try, please help :
edited
twister26 said:
There is an reward for whoever helps me solve this issue
Click to expand...
Click to collapse
u try put your sim on other phone and remove the pin from them , maybe the boot skip that part and dont get freeze
dfranco51207 said:
u try put your sim on other phone and remove the pin from them , maybe the boot skip that part and dont get freeze
Click to expand...
Click to collapse
no luck, removed sim and now it reboots as soon as android one text is displayed
I've also tried wiping cache in default recovery, no luck
twister26 said:
no luck, removed sim and now it reboots as soon as android one text is displayed
I've also tried wiping cache in default recovery, no luck
Click to expand...
Click to collapse
Try to format data in twrp or stock recovery.
If it does not work flash an android 8.0 or Nougat ROM. Do not lock the bootloader.
Let me guess. From Pie to Oreo or Nougat?
Mercoory said:
Let me guess. From Pie to Oreo or Nougat?
Click to expand...
Click to collapse
yes, exactly is there a thread already open somewhere here and i missed? last time TWRP was working, I even got a message "your system has been destroyed" or something like that.
sipollo said:
Try to format data in twrp or stock recovery.
If it does not work flash an android 8.0 or Nougat ROM. Do not lock the bootloader.
Click to expand...
Click to collapse
will try!
https://forum.xda-developers.com/mi-a1/how-to/tutorial-downgrade-9-0-to-8-1-edl-imei-t3879624
ccalixtro said:
https://forum.xda-developers.com/mi-a1/how-to/tutorial-downgrade-9-0-to-8-1-edl-imei-t3879624
Click to expand...
Click to collapse
will give it a read, it it works, I'll PM you and you'll give me your paypal address. Fair is fair.
can't unlock OEM, because I can't boot up to developer tools. great, just great. will try to fix that first.
if you can boot to fastboot try to flash stock pie 10.0.4.0 with miflash, after that your device should be able to boot, than unlock OEM and bootloader and downgrade to what version you want
fdc77 said:
if you can boot to fastboot try to flash stock pie 10.0.4.0 with miflash, after that your device should be able to boot, than unlock OEM and bootloader and downgrade to what version you want
Click to expand...
Click to collapse
I can get to fastboot yeah, but MiFlash tool says that remote oem unlock is not allowed. So I'll probably have to open it up for EDL. Reboot to edl isn't working. Thanks for the advice tho.
twister26 said:
I can get to fastboot yeah, but MiFlash tool says that remote oem unlock is not allowed. So I'll probably have to open it up for EDL. Reboot to edl isn't working. Thanks for the advice tho.
Click to expand...
Click to collapse
i had a problem like yours, but i have flashed stock rom in non EDL mode and everything had start to work apart LTE band missing that i restored with qualcomm's tools
which stock rom have you try to flash? are you downgrading from oreo? bootloop on android one logo after downgrading is a common issue due to ARB (anti rollback protection)
twister26 said:
Whoever saves my precious Mi A1 gets 10$ on his paypal.
Click to expand...
Click to collapse
This is ****
This is not XDA spirit
You can get help without to pay
Please cancel the reward, do it. For all the people on this community.
tropbel said:
This is ****
This is not XDA spirit
You can get help without to pay
Please cancel the reward, do it. For all the people on this community.
Click to expand...
Click to collapse
reward is cancelled from this point on i will reward the one who helped me so far tho. still working on solving the problem so winner has not been decided yet.
you don't understand.
There are no winners and no loosers.
You are free to donate to anyone you want, but your post boost and encourages a bad attitude.
If people start to solve only paid problems, the spirit of the community will be destroyed.
The problem is with the Pie specific partition table
I write the whole guide from memory, so it can differ a bit.... I skipped some steps ( erasing, reboot, fastboot mode, TWRP loading via fastboot, OEM unlock )
From previous writings I think you can know the skipped steps.
Keep in mind: It is dangerous, you can loose your IMEI ( it will only work again with Pie - or there are some writings at forum how can you manually change it. ).
Steps:
1 - Backup with TWRP (fastboot) efs,persist,modem & make copy to your computer and or to your cloud provider.
2 - Create a new folder in Internal Storage -> TWRP -> BACKUP -> With a new date directory ( the backup already made one, make a new folder, with different date )
3 - Download someone's older TWRP backup from xda (I cheated, I copied the following links ) :
(I'm still a new user, so can't directly write url's )
Mediafire : https COLON SLASH SLASH bit.ly SLASH 2QU5NtC
Mirror: Google Drive : https COLON SLASH SLASH bit.ly SLASH 2UN1DTo
4 - Unpack, and copy EFS to the folder created 2 point
5 - Fastboot TWRP -> Restore EFS
6 - Flash the Official latest firmware from en.miui.com ( If you want to make sure go with EDL mode )
7 - Now, the IMEI & Mac addresses are missing. Don't panic! Download update with System Updates.
8 - When you are on Pie again, restore your first TWRP (fastboot) persist partition
9 - One more System restore
At this time, you will have IMEI & Mac addressees, and hopefully a working phone.
Hope this helps. The same thing happened with me 2 weeks ago. This is how I solves it.
Thank you, I solved it yesterday. Hopefully this post will come in handy for other people!

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