After receiving the replacement motherboard i ordered from Aliexpress i found out that it was running some strange factory software. The board does not have IMEI number and a lot of stuff are missing and it shows XT1563 as a model number .
I managed to install TWRP and backed up System, Data and Boot partitions. While i am trying to get it up and running here are the files i got from it and a few pics.
https://imgur.com/ml5yakM
https://imgur.com/Y34gJd4
https://imgur.com/CvEYUzC
https://mega.nz/file/D09mXSTI#sbXTGIgWR5rbesC0uZFtnFiN0RidmgUlUOTBP7tfwT0
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My colleague at work recently purchased a verizon Galaxy S7 (flat not edge) and it came preloaded with a PE1 firmware.
Phone worked well for first 2 days then it started forceclosing apps (mostly google play services, google play, samsung pay and S-voice) which became more vigorous over the period of 2 more days. He brought the phone to me 'cause apparently I'm the tech guy to-go-to when it comes to android phones. Nevetheless, I booted the phone into bootloader and saw that Bootloader is of G930A (At&t) model. Rebooted phone and checked it has baseband of G930A model.
At first I became scared that this is one of those chinese refurbished counterfeit copies which have mtk chipset in them and retailed to fool the simple customers. I ran AIDA-64 & CPU-Z and to my surprise it correctly identified 4GB of LPDDR4 ram, 32GB of internal storage, and a SnapDragon 820 processor. Checked IMEI and it told me its Sprint S7.
Putting hardware out of the question, I came to judgement that this phone is been badly toyed with crossflashing. So What I did was downloading the PI3 firmware of G930U. I tick marked re-partition as well so that the phone boots ALL from the full wipe. Its first boot was fine after flashing but I started getting random reboots every 5 minutes, rebootloop even!
I tried to factory reset + cache clear and charge phone to 100% and to my success I did it while sitting on the welcome screen of startup setup.
I, then flashed Sprint S7 firmware PK1 from Sprint. (G930P). Phone booted fine, configured okay but threw me out an invalid sim card error and refused to take my sim. While the phone was unlocked before and working fine on GSM/3G/LTE, it blacks out on network for me now. Assuming I have the infamous Sprint sim-lock on my phone I shut down the phone.
I, then flashed the At&t PK1 firmware for G930A. Phone boots fine, configures fine. Now it is sim-locked out of the blue and I cant use network at all. I have random forcecloses and reboots but my phone doesnt bootloop when it is on AT&T firmware.
Conclusion,
Phone has corruption in its storage which odin cant even reformat.
Even if I choose repartition, I still end up with stupidity from previous firmware. (For example if I flash G930U firmware after G930P, I end up in Sprint handsfree activation EVEN IF I WIPE DATA/CACHE/Factory Reset)
I have flashed this phone about 13 times in past 18 hours to no success.
I have changed USB cables (I have a 6-inch Micro USB cable, a 1.5 ft one, a genuine Samsung one and a genuine HTC one) and every cable passes the Odin flashing process successfully.
I have used USB 2.0 and USB 3.0 ports on my laptop, even changed windows (between 7 and 8.1, two separate computers).
WHAT I NEED HELP WITH IS:
Someone who can tell me the steps to FULLY WIPE THE PHONE and FLASH from STOCK. Odin is not working for the FULLY WIPE PART despite I tick repartition.
Also, the back cover of the phone doesn't contain the information about serial/imei.
If I put S/N from *#06# into Smart Switch, it says it is invalid for any of the phone models (A, P, T, U, V models)
dark_prince said:
My colleague at work recently purchased a verizon Galaxy S7... Bootloader is of G930A (At&t) model... Checked IMEI and it told me its Sprint S7.
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What a cluster****, where did you friend get it? Used?
peachpuff said:
What a cluster****, where did you friend get it? Used?
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Click to collapse
IKR! Well, he got it from a local seller who sells stuff @ 3-days checking warranty. Thinking that the F & FD models are mostly refurbished chinese crap, he got mugged on USA model as well :/
Now Im trying to revive the phone but seemingly I can't format the cache partition.
If I NAND Erase all from Odin and install AP + BL + CP only, the phone ends up crashing everything at Welcome screen. If I flash CSC as well, phone gets crazy bootlooping.
All that happens while I get dm-verity verification failed on every official firmware I flash.
I have flashed U, T, P, A firmwares and the P firmware got me simlocked as well.... freakin' bummer that Sprint models come with a genuine simlock now instead of software-based simlock (the Handsfree activation junk). After I flashed U firmware from P firmware, I got straight up handsfree activation too.
The phone has crazy ghost storage shi** even if I NAND Erase all and flash another firmware, I can still see the phone booting out of custom logo (if I previously tried eng-boot kernel to root phone and delete the bloatware).
I experienced this on SGS10+. Odin is able to flash and re-partition, the OS boots, but once I load up ~5GB to internal /data (apps installations), the system starts lagging as hell, kernel throws out IO errors, and I am forced to reboot. Upon reboot, it tries to boot the ROM, only to fall down to recovery. Recovery also reports /data corruption. If I run e2fsck on it, it deletes half of the storage, rendering the phone unable to boot. If I reflash with stock or LOS17, the situation repeats as soon as sufficient amount of data is loaded to it. I ended-up purchasing replacement motherboard, as it seems that this is related to this particular device (I have another one with the same ROM/kernel/recovery, which works fine).
Recently, motherboard on my S6 (SM-G20F) died and I had my motherboard replaced, having made a backup, accidentally, on my old motherboard, I tried to restore all the information I had to my new motheboard.
The problem started when there was a complication durning the restore process and I was forced to flash firmware (by the way, the new motherboard is from Switzerland, the guy from which I bought the motherboard is not sure who was the phone carrier, so I was forced into flashing diffirent Swizerland firmwares) and I have lost my IMEI and baseband number.
I have already tried flashing stock firmware in order to resolve the IMEI error, Octo box and similar software are not free, so, what would You suggest ?
Thanks in advance !
De Da said:
Recently, motherboard on my S6 (SM-G20F) died and I had my motherboard replaced, having made a backup, accidentally, on my old motherboard, I tried to restore all the information I had to my new motheboard.
The problem started when there was a complication durning the restore process and I was forced to flash firmware (by the way, the new motherboard is from Switzerland, the guy from which I bought the motherboard is not sure who was the phone carrier, so I was forced into flashing diffirent Swizerland firmwares) and I have lost my IMEI and baseband number.
I have already tried flashing stock firmware in order to resolve the IMEI error, Octo box and similar software are not free, so, what would You suggest ?
Thanks in advance !
Click to expand...
Click to collapse
Flash an international ROM variant and try to restore the backup
i accidentally wiped the IMEI off of my nexus 5 when trying to repair my EFS partion (which was corrupt at the time), since i had the original value on a sticker on the back i tried to repair it. i finally managed to repair it by reflashing the radio image, then using the qualcom nv tools to write it back. my main problem is i cannot connect to the mobile network (which is at&t) after the repair, i reflashed the stock rom and updated it to the latest version (i used android lollipop in the repair process), then i manually set the APN settings according to at&t support page and still no luck. is there anyway to restore my mobile connection?
I have no clue if my suggestion is valid in this situation or not, but I know there are root apps and Xposed modules that can change IMEI. Perhaps you can try one of those to re-apply the IMEI to the system? Sadly I have no experience with doing this myself. Note that if you try this it will apparently erase various data.
I am aware of the xposed modules, however they are only temporary and need to be set each time you switch to a new ROM. in my case I plan to switch to Ubuntu touch or Sailfish OS when I get everything working again, which xposed does not work on. I did make a permanent change via the qualcom nv tools, but I am beginning to think I erased more than the IMEI. I know the MIED is only a few characters short of the IMEI, so thats restored, but I ended up with an ESN being written to the device even though I had not entered one. I am not sure if it was randomly generated somehow or if there is a way to figure out what the ESN should be from then IMEI. I also heard of baseband data being stored in the EFS partition, although I did flash a radio image to it prior to writing the IMEI and i think a radio image would likely have that data. I have no idea about the other types of data that a radio image wouldn't contain that would be essential to connecting. Any ideas?
Disclaimer: So its not a stolen phone, prior owner was just being nasty. I bought the phone from a 2nd hand shop (Cash Crusaders, Kathu, South Africa), where they told me that a lady sold the phone to them, came back after 3 months and wanted to buy it back for the same price (they guarantee buybacks for 1 month), they refused to sell it back to her at selling price, so she went and had the phone blocked. They went through the process of unbricking it through the ISPs, but in the meantime also got repair shops to try and fix it... They changed the IMEI number... So I bought the phone, fully functional, did a factory reset, saw that it had OEM unlocked and figured it was the cause for the biometrics not working, turned that on and thats where my mission started. OEM locked, custom firmware detected... Used Odin to flash on stock firmware (from Frija), got the phone functional, but emergency calls only and no cellular. I have tried rooting and using console, I have tried changing it in the EFS file, I have tried changing it via ADB Fastboot, via dialer (does nothing even with Google Dialer Framework V5)) no dice, it keeps the incorrect IMEI. I have looked up the IMEI on IMEI.info and its clean, so I take it they managed to get it unblacklisted, which is why I want to get the original IMEI back.
What I would like help with is does anyone know how exactly I can change the IMEI number on my phone (Rooted with Magisk and TWRP, but eXposed framework is finnicky and doesnt register properly, even through I installed the RIRU (V23) and RIRU EdXposed (Canary, both Sandhook and YAHFA on seperate occasions) packages via Magisk (V21.1 and V8.0.3 for manager) as per instructions.
P.S. I am a student on a tight budget, so I would prefer to do it on the cheap/free and I live in Namibia, so sending it to Samsung isnt quite an option.
Also please let me know if there is any info, logs, etc. I can attach that might help.
Koonus said:
I suppose it was stolen
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I have my receipt and they have theirs. So by all means verify the IMEI yourself 356630093456642.
There Are some leaks at "g-works..." To Get into a phone that is reported as lost.
Tekodrink said:
There Are some leaks at "g-works..." To Get into a phone that is reported as lost.
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Thing is phone got cleared. Original IMEI is clean, which is why I wanna reset it back to it, only problem is they seem to have used a flash-kit to change it in the recovery partitions too (bricked the damn thing when I recovered it (accidentally turned OEM lock on...), I've tried everything down to loading the engineering combination file (interesting though, its android 8.1, which shouldn't actually be possible to do from Android 10) on it and trying through there, no dice. Also asked local repair shops if any of them have a flash kit, none have 1... So I'm stuck at this point, cant even do the normal 'pay a repair shop to fix it for you' method.
I have very weird case. I have upgraded my phone (Smasung Galaxy A31 - dual sim) to Android 12. I did factory reset and cleared all data.
Now, when I configure phone from scratch, everything is OK until I make a call. I can call anybody and I can talk how long I want (after last test It was more than 2 minutes). As soon I end up the call both IMEIs in my phone are gone, phone shows "service unavailable", In the phone settings I can see "IMEI 1: Unknown" "IMEI 2: Unknown" and of course I'm not able to do any other call. Reset of the phone do not help at all.
All I can do in this case is Factory Reset - after that again I can make only one call and IMEIs are gone.
I have observed such behavior sometime ago. I thought it was some ROM issue, so I've flashed previous one (with Android 11) and phone was working fine. Unfortunately I didn't notice that recently Samsung has changed binary version of the firmware and now I'm doomed - I cannot flash old firmware anymore and there are no custom roms for my phone model.
I have rooted the phone and I've tried several tools to force IMEI but none is working for me.
I have no NVRAM backup. As I read the problem may be located there - but if so, then why I can do one call at all?
What could be the cause of such weird behavior?
Do a Google search for "restore-imei-number-after-an-nvram-clear": Dozens findings ...
So also this one:
[GUIDE] Restore IMEI number after an NVRAM clear
This thread will go over restoring the IMEI number if you cleared the NVRAM (or fully formatted your phone). The official tool to use is the SN Writer tool from Mediatek but as the P60 processor is not compatible with that, I had to search for...
forum.xda-developers.com
@xXx yYy
I didn't clear NVRAM. I mean at least I'm not aware of it. Correct me if I'm wrong but if NVRAM is cleared/broken I shouldn't be able to do ANY call, right?
And as I wrote, I already observed such issue on my phone long time before and then the solution was to downgrade ROM to previous version and phone was working fine - so I assume that NVRAM is ok, right? I cannot dowgrade it now due to changed Binary Version
I'm struggling with this issue since last two weeks and I also wanted to verify if my NVRAM is fine. But I cannot turn my phone into Meta Mode. Do Samsung devices have it at all? (Samsung Galaxy A31 dual sim)
My phone is rooted and have TWRP flashed:
Can I somehow access NVRAM from TWRP and check what is going on there?
Can I somehow access NVRAM from Magisk (modules) / LSPosed and check what is going on there?
IDK. Reason: Have neither TWRP nor Magisk ever installed on any of my phones.
I have found some workaround for this issue here: https://forum.xda-developers.com/t/fixed-rooted-a325m-suddenly-no-imei-no-sim.4386753/post-86588571
After applying it, there is still some glitch (it looks internal modem restarts after each call and I'm getting some notification about that) but at least I'm able to do calls without Factory Reset.