I had completely formatted (including the bootrom) my smartphone (Lenovo K4 Note, variant) using SP-Flash Tool, resulting in loss of IMEI, SN, WiFi address etc. At the time I had almost zero knowledge of the various partitions of the smartphone and was under the impression that re-flashing the stock ROM would fix everything if something goes wrong, hence didn't took the back,only to realize it won't if you have also formatted the boot ROM. Anyways over a period of time i was able to fix all things but the Serial Number (SN) which still shows all zeros (8 bytes).
Currently i am running MM 6.0 but it was formatted when i had Lollipop (5.1) (pre-installed), anyways recently i got hold of correct nvram partition image (shared by one of the member on this site) which i flashed it on my phone. After flashing it (using SP Flash tool as well as through TWRP recovery) my phone started to show correct SN value (not mine but the value stored in the nvram image shared by the member).
Encouraged by this, i hex edited the nvram image and replaced the stored serial number by the original serial number of my phone (ensured all occurrences are replaced in the nvram in fact in the whole ROM dump) and re flashed the nvram image. Unfortunately to my disappointment the serial number is again reset to all zeros.
So can someone please tell me what is going wrong here? What extra information is required to fix it?
Please see there are tons of serial number tutorials on the net and probably i have tried them all ( Even tried after reverting to Lollipop 5.1) but none of them works. The tools mentioned in those tutorials either writes "Barcode Serial Number" (Barcode) which is NOT same as the serial number displayed by Lenovo K4 Note in "about phone" menu. Lenovo seems to be using a custom serial number. Or they do not work with ARM64 Bit MT6753 chipset.
I need to fix this serial number as i wish to sell my phone and go for another model.
Please let me know if you need more information from me.
Thanks in Advance
if you made nandroid backup of stock rom then restore nvram and nvdata in custom recovery and reboot
Thanks for the reply. Unfortunately I didn't created any back up whatsoever.
TWRP doesn't work if you have also formatted the bootrom, which I did (I have updated my query with information)
did anybody got solution of this. hw to change SN in k4 note?
Edit: issue fixed. this thread will help https://forum.xda-developers.com/k3-note/general/restore-sn-form-00000000-to-original-one-t3356401
Related
Hi everyone,
My S4 has lost its IMEI, and here is my situation.
I was using Prism v14 (http://forum.xda-developers.com/showthread.php?t=2537515), and it was totally fine. Last night, I tried to flash a new S6 port rom, this http://forum.xda-developers.com/galaxy-s4/i9500-develop/rom-aurora-s6-port-t3063408, and my fone lost its signal. The signal icon is still full, but it was only available at emergency calls. When i check, IMEI and Serial number were still there. I tried flashing the Prism v14 again, didnt fix it.
Then I took my fone to the care center and left it there for a few hours. When i come back, they told me that, they flashed it back to stock, and when i ceck, the IMEI was gone. They explained that, when I flashed the S6 port rom, the real IMEI was gone, it was only the fake IMEI from the rom that I saw (didnt know if this was true).
So now im asking for any possible help/solution. I was bad to forget backing up my EFS. So i wonder if I can use someone else's EFS to restore? If yes, it would be great if any one can share with me the EFS backup.
Thank you for reading and please excuse my bad English.
The EFS folder doesn't store the IMEI, despite having an IMEI folder, thus it won't help you. nv_data.bin also will not be found there, if my S4 is any indicator, but will be found in the hidden partitions.
You'll need to try flashing the baseband for your device again, and to do that you're going to have to download a copy of the ROM, which should be found on the forums here. Sometimes the baseband needs to be flashed twice for everything to properly work. I can only speculate why that is, but I believe it to be due to having two hidden partitions for the baseband. When the baseband is copied into the first partition it isn't copied into the second, resulting in a mismatch. Flashing the baseband a second time writes the baseband to the second partition, and everything functions correctly.
If flashing the modem again does not work, getting your IMEI back will require using methods that cannot be discussed here on XDA.
Hi Guys,
This is my first post here and also I am fairly new to android, so I apologize in advance if I violate a forum rule or ask an obvious silly question. Anyway,I Recently, I received a Samsung A5 2016 Dual Sim from my friend which did not boot up. Apparently he had installed an app which caused this situation. Then he had tried to install multiple firmwares with Odin on it without success. Anyway, I received the phone and first strange thing that I found was that product name in download mode was SM-A5108 which was different from A510FD which was on the phones box. This probably was the main reason behind not being able to flash any A510FD firmware on phone. So I flashed a A5108 firmware on it booted up to android. But there was 4 issues there:
1- No baseband version was available.
2- No IMEI information for either of sim card slots and of course not detecting any of sim cards.
3- Very sensible lag and delay on loading apps and working with menus.
4- Also A5108 is apparently available for china region so menu was Chinese and other region specific apps was on it.
I found out the original firmware on it was A510FD so searched a little bit and found out it is possible to restore a backup from A510FD. I downloaded a backup file from internet and restored it using TWRP (Data, System, Boot). After restore, phone booted up with A510FD but once again with null IMEI and also lagging. Right now baseband version is available and device model on about section is A510FD. I know all radio related information is on EFS but I have no EFS backup right now and restoring EFS is not an option. Is there any way to fix IMEI issue now?
I can provide exact build number and any other information about phone and firmwares that I used in case it is required for better troubleshooting.
check you phone model by imei or serial from the box or from back of the phone, if someone messed up that phone is hard to be sure what model is
remosam said:
check you phone model by imei or serial from the box or from back of the phone, if someone messed up that phone is hard to be sure what model is
Click to expand...
Click to collapse
I forgot to mention there is no IMEI on phone's box or phone itself. But phone's model (A510FD)is printed on box. Also battery is non-removable so not able to check inside of phone for IMEI.
If there is no other option you could remove the back glass panel to see the IMEI number there is a sticker underneath it i replaced the screen of mine and i saw this sticker. You need to be carefull taking off the panel tho cuz you coul rip off the sticker if you're not careful.
Thank you for responding. Okay, Let's suppose I found out IMEI by opening phone's back panel. What is the next step? How could I use these information to recover IMEI to phone? Is there any chance that IMEI information is at EFS partition but due to wrong firmware upgrade it is not working?
SMA520f IMEI Currupted to 0000x Help?
Hi guys i have a 2017 a5 which i rooted, however i reflashed stock android but the imei number has become Currupted to all zeros, i still have my original number printed under the battery, i remeber when i has a s2 this happened to me and there was a file i edited to add my imei number back to the phone, what is the best way for me to root and access the required file to add my original imei number back on my a7. Thank you.
kindest Regards.
kuljit55 said:
SMA520f IMEI Currupted to 0000x Help?
Hi guys i have a 2017 a5 which i rooted, however i reflashed stock android but the imei number has become Currupted to all zeros, i still have my original number printed under the battery, i remeber when i has a s2 this happened to me and there was a file i edited to add my imei number back to the phone, what is the best way for me to root and access the required file to add my original imei number back on my a7. Thank you.
kindest Regards.
Click to expand...
Click to collapse
Hi. I think you'll get more help if you ask your question in A-Series 2017 forum. There you'll also find TWRP and root for A520.
The files you refer to is probably the nv_data.bin in /efs. I've read it should be possible to restore imei somehow by using hex-editor but I have no experience in that. I also know some older models had a "hidden" menu where you could perform a NV restore but I don't know if it's possible on newer devices.
Anyway, I wish you best of luck to restore your IMEI and hope you'll find someone who can help you more.
Hello everyone, recently I've flashed the Superman ROM V.3.0.1 and everything was fine until I went to general settings on my phone and saw my IMEI is now UNKNOWN. I know this thread may be already solved, and yes, these days I was looking for answers for my problem but I need to know for sure what alternatives I have to recover my IMEI. I have to mention, my phone is 100% original, it has its own IMEI from the beginning, not a copy or MTK device. I saw some sollutions based on some kind of programs to restore manually the IMEI with a command, and this method for me it's not like the best thing to do in this situation..
When I am dialing *#06# I receive the following information: " SM-G935F is not supported on showIMEI ".
I've checked through TWRP ( version 3.1.1.0 ) the partition EFS, is still there ( it has 2mb ). What do you guys think about this? Flashing the stock ROM from sammobile may solve my problem? What alternatives do I have?
Thank you!
I have successfully rooted my phone using twrp and magisk, but managed to lose my phone's identity, I screwed up because I did not make a backup first. I lost imei and baseband version, now the phone can't have a sim, no CDS info, only Wi-Fi is working. Model is XT1761, single-sim, already searched in the whole forum, couldn't manage to find nothing. Tried various nvram files without success. Please help, I am a beginner, and would appreciate if someone could help me understand better if I can repair this phone. Not my main phone, but still, I would be happy to repair it.