Hi guys, I need help...
I update my Optimus One p500 with the leaked gingerbread rom following the russian guide... I chose the Erase EFS option and now the phone does not recognize my sim card.
I try nand restore and restore kdz, but the phone stay without recognize the sim card...
Can someone help me?...
Thanks!
I had selected erase efs apps and i am ok. Another guy had also selected erase efs all. He lost his nv. But you might be having the nv file in the same folder. You will have to flash it via lg tool only. But i dont know how. Wait for somebody else to reply and also post in specific dev thread.
If you dont have nv file, only lg service can help you. Go there as noob.
Sent from my LG-P500 using Tapatalk
Rockvoid said in that thread:
"Erase EFS ALL" is a bad idea if you don´t flash back nv2-files afterwards...
follow the manual in the video (http://www.youtube.com/watch?v=OmsmiCswC88&feature=player_embedded and do NOT use other settings or your phone will not work anymore...
--> is there any way to return gsm after Erase EFS ALL?
a) flash your nv2-file (it´s saved by LG-flash-program automatically - if you did not delete it afterwards !!!)
b) if you deleted your nv2-backup from your computer: http://forum.xda-developers.com/showthread.php?t=534704 (could work maybe)
c) go to lg service
nv2-file includes e.g. you IMEI or MAC-Adress..so your phone will not work whithout this !!!
!!! the nv2 file is not included in *.kdz !!! its phone-specific !!!
lekhwani said:
Rockvoid said in that thread:
"Erase EFS ALL" is a bad idea if you don´t flash back nv2-files afterwards...
follow the manual in the video (http://www.youtube.com/watch?v=OmsmiCswC88&feature=player_embedded and do NOT use other settings or your phone will not work anymore...
--> is there any way to return gsm after Erase EFS ALL?
a) flash your nv2-file (it´s saved by LG-flash-program automatically - if you did not delete it afterwards !!!)
b) if you deleted your nv2-backup from your computer: http://forum.xda-developers.com/showthread.php?t=534704 (could work maybe)
c) go to lg service
nv2-file includes e.g. you IMEI or MAC-Adress..so your phone will not work whithout this !!!
!!! the nv2 file is not included in *.kdz !!! its phone-specific !!!
Click to expand...
Click to collapse
Thanks you!!! I try with your "a" option and it fix my phone.
Hi people
please i need someone with a big heart give me a EFS Backup partition of s6 Edge, for to try repair lock screen securty, bluetooth and other problemsi have after install a bad EFS partition found on internet without make origianal backup
oh Guys Please Helpme Someone give a backup partition!
Files inside /efs are unique. Using someone else's folder, for Bluetooth (example), would make you impersonate another phone and this isn't very legal. You had to make a backup of that folder before touching anything related to the system.
iDroid27210 said:
Files inside /efs are unique. Using someone else's folder, for Bluetooth (example), would make you impersonate another phone and this isn't very legal. You had to make a backup of that folder before touching anything related to the system.
Click to expand...
Click to collapse
in to efs partition only have wifi mac, bt mac and imei in plain text if you want you can edit this files but macs or imei no change only editing this files... if somebody wants to help me, can delete mac or imei file i dont care this.
iDroid27210 said:
Files inside /efs are unique. Using someone else's folder, for Bluetooth (example), would make you impersonate another phone and this isn't very legal. You had to make a backup of that folder before touching anything related to the system.
Click to expand...
Click to collapse
after edit this partition, lost security options, i cant setup finger print, pattern, or pin... i tried anything, now i want to try with other efs partition from same model, but MAC or IMEI i doesnt mather
Arnolcas said:
after edit this partition, lost security options, i cant setup finger print, pattern, or pin... i tried anything, now i want to try with other efs partition from same model, but MAC or IMEI i doesnt mather
Click to expand...
Click to collapse
Mate just flash stock rom
Arnolcas said:
after edit this partition, lost security options, i cant setup finger print, pattern, or pin... i tried anything, now i want to try with other efs partition from same model, but MAC or IMEI i doesnt mather
Click to expand...
Click to collapse
Flash stock Rom or use combination firmware to try to repair efs
PaulSandru said:
Mate just flash stock rom
Click to expand...
Click to collapse
callumbr1 said:
Flash stock Rom or use combination firmware to try to repair efs
Click to expand...
Click to collapse
when you says stock rom is any rom from sammobile for SM-G925i ???
Arnolcas said:
when you says stock rom is any rom from sammobile for SM-G925i ???
Click to expand...
Click to collapse
https://updato.com/firmware-archive-select-model?q=G925i&exact=1
callumbr1 said:
https://updato.com/firmware-archive-select-model?q=G925i&exact=1
Click to expand...
Click to collapse
Downloading Thank Bro!
Avoid and pass by a fool and a madman
Thanks for this warning post. Glad that we only use it in "boot mode" to extract the boot.img, and backup our system partitions, and we don't install it just to make sure things are not touched. The chinese version TWRP can't read Global version's encrypted user data, so it can't install anything on your phone unless you format the user data within TWRP, I guess.
wga0 said:
Is it needed to provide our own twrp, which is bulit into all of the global version, with the official TWRP? Are you really need it?
Click to expand...
Click to collapse
Well, I only use it to backup system partitions of non-rooted phone and nothing else, so if we could find another way to do that then I can easily ditch it. Otherwise it would be nice if we have our own Global TWRP for sure.
wga0 said:
I bought this phone to play games.... but It make me only to work terribly...
Click to expand...
Click to collapse
I feel you bro, as I have the same problems as yours.
KM7 said:
Thanks for this warning post. Glad that we only use it in "boot mode" to extract the boot.img, and backup our system partitions, and we don't install it just to make sure things are not touched. The chinese version TWRP can't read Global version's encrypted user data, so it can't install anything on your phone unless you format the user data within TWRP, I guess.
Well, I only use it to backup system partitions of non-rooted phone and nothing else, so if we could find another way to do that then I can easily ditch it. Otherwise it would be nice if we have our own Global TWRP for sure.
I feel you bro, as I have the same problems as yours.
Click to expand...
Click to collapse
Oh.. you're right. It uses different encryption, so it can't approach to userdata. :good:
Just re-lock the critical sections will be good for global users, and it seems that china users need to be careful. And I didn't see it through. I just stopped at the batch files it uses... It can be merely unofficial twrp. Thank you for your great discovery...
I am a bit of a scaredy cat, and I don’t want to pollute the GSI thread with this question.
OnePlus is not offering fast boot flash images for their Nord 2. And the only way to get a custom rom is by flashing a custom vbmeta image and a system image for GSI.
The question now arises, how could one come back from a GSI into stock? I would assume I would need to do ADB push/pull and copy the whole system NAND to a file, then restore that if needed.
Would that be true? Or are there better / faster / safer ways to turn the phone to stock?
I have not yet received my unit, but i want to start tinkering with it as soon as I get my hands on it. So I want to know if there are any ways to undo any and all modifications i would do to the system.
Cheers
Can't twrp backup as system.img
ajaz35 said:
Can't twrp backup as system.img
Click to expand...
Click to collapse
I am unsure if this is being worded as a factual statement, or as a question.
I am telling that TWRP Backs up system as System.img in most Phones.
Same should apply to Nord 2.
ajaz35 said:
I am telling that TWRP Backs up system as System.img in most Phones.
Same should apply to Nord 2.
Click to expand...
Click to collapse
It should apply, but there's the issue of backups needing to be bit-perfect to ensure not to upset dm-verity
I have however found a bunch of commands that i will be testing in about 6 days, once i receive the terminal. I will be placing them for future reference, and for any poor souls who may need this:
Code:
adb backup --twrp -f /directory/to/save/dump.db
Not exactly my cup of tea, but this should combine bit-perfect system and vendor images with space-saving regular file copies of other lesser i mportant partitions, and ignoring the /data/media partition. Should be good enough.
Code:
adb root
adb shell 'dd if=/dev/block/mmcblk0 2>/dev/null' > mmcblk0.img
These two commands should, on an ideal world, with debugging enabled on the target device, and from within TWRP, create a bit-perfect copy of the entire nand and leave them on the CWD. however, the path may differ from what i've found, different chipset and all. However, that's nothing that a good old
Code:
lsblk -l
won't solve. The tricky bit will be actually pulling the file back. Since redirects can seemigly be used to copy the image file to the CWD, redirects may be able to be used to write to disk remotely. This one requires more research.
Alternatively, i will need to buy an OTG cable, get a large enough flash drive, and mount it for the purposes and DD'ing the file out and into the device. If all else fails, with 8GB of RAM it should be able to store 1/16 of the total NAND flash onto ram and slowly stitch the nand in chunks. Not shore how well would that go, too many points of failure. But keeping this for my own musings.
Another possible answer would be to boot into TWRP, running
Code:
lsblk -l
to see all the mount points, and using
Code:
adb push / adb pull
on each of them. Research indicates one can't copy the whole NAND this way, but individual partitions. Should suffice as long as the subsequent coopies are bit-perfect. Assuming one can push the generated image back, this may be the most satisfactory answer.
I will attempt to perform these tasks when i receive the phone and see if it can successfuly restore it's own backup.
ajaz35 said:
I am telling that TWRP Backs up system as System.img in most Phones.
Same should apply to Nord 2.
Click to expand...
Click to collapse
Additionally, one should note that i intend on fully backing up the NAND of the device. Just the system partition is insufficient. as there may be updates on the way that may make restoring the system partition from an OTA image impossible. Therefore, a full NAND copy is needed. altnernatively, if a low-level copy cannot be achieved, individual bit-perfect copies of individual partitions will need to suffice, and hoping no GSI or custom rom maniulates any of the protected partitions.
Do you flash the system.img from my backup?
Oneplus Nord 2 Oxygen 11.3 DN2103 EEA ROM
Flash at your own risk. I am not responsible for any damage or data loss to the device during this process! Downloads: The Fastboot restoration file can be downloaded in here: DN2103_11_A.07 DN2103_11_A.10 *deleted DN2103_11_A.11 *deleted...
forum.xda-developers.com
sakarya1980 said:
Do you flash the system.img from my backup?
Oneplus Nord 2 Oxygen 11.3 DN2103 EEA ROM
Flash at your own risk. I am not responsible for any damage or data loss to the device during this process! Downloads: The Fastboot restoration file can be downloaded in here: DN2103_11_A.07 DN2103_11_A.10 *deleted DN2103_11_A.11 *deleted...
forum.xda-developers.com
Click to expand...
Click to collapse
As I stated previously. I have yet to receive my terminal. So I haven’t flashed anything yet.
however, disabling dm-verity, installing your system image, see it it fails, and if it fails, backing up, will be a great way to test if my backups are effective.
I want to toy around with your image and PHH’s once I get the terminal. So I’m just trying to preemptively have backups in place for when I inevitably flash something without paying attention and bricking the device.
that reminds me, were you the one who needed a full system dump a few weeks ago on another thread? I can upload my image once I get it working
Edit: just checked it was phhusson who needed the dump. Sorry about the mix up
ZanaGB said:
As I stated previously. I have yet to receive my terminal. So I haven’t flashed anything yet.
however, disabling dm-verity, installing your system image, see it it fails, and if it fails, backing up, will be a great way to test if my backups are effective.
I want to toy around with your image and PHH’s once I get the terminal. So I’m just trying to preemptively have backups in place for when I inevitably flash something without paying attention and bricking the device.
that reminds me, were you the one who needed a full system dump a few weeks ago on another thread? I can upload my image once I get it working
Edit: just checked it was phhusson who needed the dump. Sorry about the mix up
Click to expand...
Click to collapse
I tested rhe gsi Versions, but not good i flash my system.img, dtbo, persist and vbmeta and go back to stock
Just got notified that the phone arrived. So this evening i will get it up and running then worry about backing up later.
Hi. How return the device to stock and lock bootloader? Is there manual?
shnailcheg said:
Hi. How return the device to stock and lock bootloader? Is there manual?
Click to expand...
Click to collapse
Assuming you didn't install any custom ROM, all you have to do is boot onto fastboot and type fastboot OEM lock or fastboot flashing lock. Forgot which exactly.
I have root installed
shnailcheg said:
I have root installed
Click to expand...
Click to collapse
restore your full NAND backup and godspeed
have you tried this method on nord 2?
shnailcheg said:
have you tried this method on nord 2?
Click to expand...
Click to collapse
I made a nand copy but never backed it up.I ended up not needing root for anything and I won't install any ROMs until there's any good ways to have a failsafe for backups. So to all effects I have a backup I haven't tested. I am not gonna risk losing my IMEI or having a zombified phone due to missing blocks on the backup.
To be specific. I have ways to get data OUT of the phone. But I don't have a reliable way to get the data IN and ensure nothing critical is missing or overwritten in the process. And I am too afraid to lose my phone just testing if backups ACTUALLY work.
K
ZanaGB said:
I am a bit of a scaredy cat, and I don’t want to pollute the GSI thread with this question.
OnePlus is not offering fast boot flash images for their Nord 2. And the only way to get a custom rom is by flashing a custom vbmeta image and a system image for GSI.
The question now arises, how could one come back from a GSI into stock? I would assume I would need to do ADB push/pull and copy the whole system NAND to a file, then restore that if needed.
Would that be true? Or are there better / faster / safer ways to turn the phone to stock?
I have not yet received my unit, but i want to start tinkering with it as soon as I get my hands on it. So I want to know if there are any ways to undo any and all modifications i would do to the system.
Cheers
Click to expand...
Click to collapse
Keep nandroid backup evry time you want to go back just restore that nandroid backup using twrp if you gets data restoration error just deselect data emmc win file in backup and restore.
Remember on android 12 gsi twrp data encryption issue so u can't able to access internal storage to restore the backup so first go back to android 11 gsi, now transfer that backup to twrp folder and then boot back to twrp and restore
I personally done this when I stuck on android 12gsi
pankspoo said:
K
Keep nandroid backup evry time you want to go back just restore that nandroid backup using twrp if you gets data restoration error just deselect data emmc win file in backup and restore.
Remember on android 12 gsi twrp data encryption issue so u can't able to access internal storage to restore the backup so first go back to android 11 gsi, now transfer that backup to twrp folder and then boot back to twrp and restore
I personally done this when I stuck on android 12gsi
Click to expand...
Click to collapse
One thing i have been reading from the TWRP Nandroid backups, is that people who install the GSI and then restore, lose their IMEI data and other baked-in addresses.
Is that the case? I would imagine that since TWRP backups aren't bit-for-bit it could cause problems. Have you tested for that?
EDIT: additionally, i guess i absolutely need an OTG adatper to properly restore the backup, since the mere ac of restoring the backup would destroy the backup in the process, wouldn't it?
ZanaGB said:
One thing i have been reading from the TWRP Nandroid backups, is that people who install the GSI and then restore, lose their IMEI data and other baked-in addresses.
Is that the case? I would imagine that since TWRP backups aren't bit-for-bit it could cause problems. Have you tested for that?
EDIT: additionally, i guess i absolutely need an OTG adatper to properly restore the backup, since the mere ac of restoring the backup would destroy the backup in the process, wouldn't it?
Click to expand...
Click to collapse
No if u r on android 12 gsi u need OTG there twrp will not work.
No issue in Restoration on android 11gsi
pankspoo said:
No if u r on android 12 gsi u need OTG there twrp will not work.
No issue in Restoration on android 11gsi
Click to expand...
Click to collapse
So. The way i understand it.
1: Full backup from the stock ROM ( Android 11 Based ) using TWRP
2: Install a GSI, for example, Android 12 GSI
3: In need of going back, first install the Android 11 GSI
4: Once with the 11 GSI installed, recover the TWRP Backup
Would that be correct?
My mobile is in soft bank variant . I want to change this variant By flashing another variant software .
I am not very experienced in these tasks
Is it really possible to do this?
And if it can be done like this, how can I do it, can any experienced person help me .
you can croosflash with kdz or restoring backup partitions and will be another softvare but you can not trully convert phone to another variant because imei and NT code stay inside vital partitions.
Note: if you croosflash JP variant losing NFC functionallity.
JigsawMobile said:
you can croosflash with kdz or restoring backup partitions and will be another softvare but you can not trully convert phone to another variant because imei and NT code stay inside vital partitions.
Note: if you croosflash JP variant losing NFC functionallity.
Click to expand...
Click to collapse
Thanks