Hi guys!
Yesterday my firmware update went terribly wrong and now I have a device that states that imei and baseband are unknown, so I my both sim-cards don't work.
I've tried several types of IMEI restoration, but none of them worked.
Unfortunately I don't have any backup for nvram. So, my guess is that there is a problem with EFS partition on the phone.
In QPST NV RF Manager I see my real IMEI from the box, so I guess it is still present, but my baseband doesn't work. Can you please suggest any help on recovering the baseband? Or if it is possible share with me modem backup or nvram backup without IMEI (I've seen on this forum that one guy with Samsung S3 had a kind of the same problem and he was given a working nvram backup without IMEI (IMEI was 0/00)) I can write my IMEI then, if baseband works again. Will appreciate any help.
Send it back. Only the oem is legally able to mess with the IMEI.
zelendel said:
Send it back. Only the oem is legally able to mess with the IMEI.
Click to expand...
Click to collapse
Well... I have managed to make it work again and my original IMEI is back. The only thing I had to do is to restore a working NVRAM backup (from another device) via QPST. So, it wasn't that hard. Much simpler than sending it back to China.
landslider said:
Well... I have managed to make it work again and my original IMEI is back. The only thing I had to do is to restore a working NVRAM backup (from another device) via QPST. So, it wasn't that hard. Much simpler than sending it back to China.
Click to expand...
Click to collapse
If you restored the file from another device then it won't have the right IMEI.
zelendel said:
If you restored the file from another device then it won't have the right IMEI.
Click to expand...
Click to collapse
It HAS right IMEI, I checked it with the original box. No need to put up an argument about it. Both devices (mine and the one which was backupped and restored from) are working fine, bot have ORIGINAL IMEI numbers and no errors considering networks or MI accounts. So, actually I have no idea what you are trying to tell me.
landslider said:
It HAS right IMEI, I checked it with the original box. No need to put up an argument about it. Both devices (mine and the one which was backupped and restored from) are working fine, bot have ORIGINAL IMEI numbers and no errors considering networks or MI accounts. So, actually I have no idea what you are trying to tell me.
Click to expand...
Click to collapse
I'm not making an argument. I'm trying to figure out how a number which is supposed to be hard coded into the file is then restored by restoring the files from a different device.
As these devices are not sold in the states learning as much as possible is a good thing.
Glad you got it working.
zelendel said:
I'm not making an argument. I'm trying to figure out how a number which is supposed to be hard coded into the file is then restored by restoring the files from a different device.
As these devices are not sold in the states learning as much as possible is a good thing.
Glad you got it working.
Click to expand...
Click to collapse
Okay, sorry. I will try to make it a bit clearer=) This device is not sold in Russia either (officially at least), so the only way to get it is to buy from aliexpress or ebay or anything else. In that case the buyer doesn't get any guarantee or official support. So if the device is broken and can't be restored it turns into a garbage. I believe that in the US the situation with that kind of devices is almost the same.
Now, if You are not familiar with QPST it is a software package for qualcomm based devices which can make backup/restore of some non-firmware software from the device (like IMEI, ESN, Baseband, LTE Channels etc). As for IMEI number, basically, as You've said it is hard coded into device so it is pretty hard to get it changed or fully deleted. Here we come to my case of unknown Baseband and IMEI. Though via phone settings I could see: "Unknown", my IMEI didn't change and was stored in the device. The "error" or smth like that happened after the factory reset and my guess is that the file structure of NVRAM was changed. So, backup of NVRAM taken from the working device didn't actually have IMEI or ESN in it, but it has the right file structure without any errors. That is what happened, the file structure was restored without changing any factory numbers.
If you have any questions, feel free to ask
landslider said:
Okay, sorry. I will try to make it a bit clearer=) This device is not sold in Russia either (officially at least), so the only way to get it is to buy from aliexpress or ebay or anything else. In that case the buyer doesn't get any guarantee or official support. So if the device is broken and can't be restored it turns into a garbage. I believe that in the US the situation with that kind of devices is almost the same.
Now, if You are not familiar with QPST it is a software package for qualcomm based devices which can make backup/restore of some non-firmware software from the device (like IMEI, ESN, Baseband, LTE Channels etc). As for IMEI number, basically, as You've said it is hard coded into device so it is pretty hard to get it changed or fully deleted. Here we come to my case of unknown Baseband and IMEI. Though via phone settings I could see: "Unknown", my IMEI didn't change and was stored in the device. The "error" or smth like that happened after the factory reset and my guess is that the file structure of NVRAM was changed. So, backup of NVRAM taken from the working device didn't actually have IMEI or ESN in it, but it has the right file structure without any errors. That is what happened, the file structure was restored without changing any factory numbers.
If you have any questions, feel free to ask
Click to expand...
Click to collapse
It is almost the same with a few exceptions. One being that their devices are banned from all people that work for the government, sometimes they get stopped at customs due to copyright issues and with the latest news about them coming loaded with malware, most won't buy them.
That makes sense in a way. Not sure why a factory reset would mess up that part of the device as it shouldn't touch it.
Thanks for the info.
zelendel said:
Not sure why a factory reset would mess up that part of the device as it shouldn't touch it.
Click to expand...
Click to collapse
I don't know either, but it was an unforgettable experience and a lesson to do backups of everything.
Hi @landslider, what's up friend? I have the same problem but I have no backup hidden partitions. Could you help me fix my device?
harolete said:
Hi @landslider, what's up friend? I have the same problem but I have no backup hidden partitions. Could you help me fix my device?
Click to expand...
Click to collapse
Hi! Have you tried flashing China developer rom with Miflash?
Second option: Connect to your PC and run QPST according to one of the manuals (in order for your phone to show up as a COM), run RF NV Manager and look up your line 550 NV_IMEI if it is filled with numbers that are the same as on your box (check HEX above them and numbers should resemble yours from box but written in opposite direction, eg: on the box it is XXXX69XXXXX in the QPST it will be 96). So, if your IMEI is at its place than all you need is a working device from someone to make a backup. Backup must be made in newer versions of QPST in *.xqcn format and than restored to your phone with checked box "allow ESN mismatch"
landslider said:
Well... I have managed to make it work again and my original IMEI is back. The only thing I had to do is to restore a working NVRAM backup (from another device) via QPST. So, it wasn't that hard. Much simpler than sending it back to China.
Click to expand...
Click to collapse
Could you teach me how to do that? how can i make nvram backup via other mi4c? and how can i put it into my mi4c ?? as i am not good at computer so i need your detailed explanation. I would be very glad if you help me.....
landslider said:
Okay, sorry. I will try to make it a bit clearer=) This device is not sold in Russia either (officially at least), so the only way to get it is to buy from aliexpress or ebay or anything else. In that case the buyer doesn't get any guarantee or official support. So if the device is broken and can't be restored it turns into a garbage. I believe that in the US the situation with that kind of devices is almost the same.
Now, if You are not familiar with QPST it is a software package for qualcomm based devices which can make backup/restore of some non-firmware software from the device (like IMEI, ESN, Baseband, LTE Channels etc). As for IMEI number, basically, as You've said it is hard coded into device so it is pretty hard to get it changed or fully deleted. Here we come to my case of unknown Baseband and IMEI. Though via phone settings I could see: "Unknown", my IMEI didn't change and was stored in the device. The "error" or smth like that happened after the factory reset and my guess is that the file structure of NVRAM was changed. So, backup of NVRAM taken from the working device didn't actually have IMEI or ESN in it, but it has the right file structure without any errors. That is what happened, the file structure was restored without changing any factory numbers.
If you have any questions, feel free to ask
Click to expand...
Click to collapse
so can you please upload that xqcn file from the working device ? i have the same issue and i can't find a working mi4c inn my area !
spybit2008 said:
so can you please upload that xqcn file from the working device ? i have the same issue and i can't find a working mi4c inn my area !
Click to expand...
Click to collapse
Hi! Unfortunately no, I can't. I don't have xiaomi mi4c anymore
spybit2008 said:
so can you please upload that xqcn file from the working device ? i have the same issue and i can't find a working mi4c inn my area !
Click to expand...
Click to collapse
http:/ en.miui.com thread-315233-1-1.html (replace whitespaces with slash)
There is a thread in official forum where one guy shares qcn backup. There is also an instruction to restore IMEI and baseband. But It doesn't help for me. Network still unavailable.
Hello dear ones, I'm lost and I need your help.
I've bought a used SM-g920f, knox x0. It worked flawlessly. Until the first evening when in the middle of a phone call the phone app crashed. After resetting the phone it was still unable to connect to network. I have noticed that baseband/IMEI were set to unknown and so it could not read my sim card.
First I have tried the obvious - upgrading from lollipop to marshmallow. It went easy but did not help. Neither did help resenting to factory settings.
I have rooted and installed twrp recovery adb and stuff.
After almost two days playing with it, I seem to be out of options.
What I tried:
Flashing Different roms - stock and non-stock. (G920FXXS3DPB2_G920FXEU3DPB1_G920FXXS3DPB3_HOME, G920FXXS3DPB2_G920FOXX3DPB2_G920FXXS3DPB3_HOME, Pure-Stock.ExtraLiteROM_XXU3DPCA.DEODEX-v5.5.by.ambasadi, XtreStoLite-ROM-3.0-Final-DPCA) - I do not know the country of origin of this device. (the back is from testing unit), is there some way to know correct original stock ROM ?
Flashing Different modems - (G920FXXS3DPB1_Modem_TWRP, G920FXXU3DPB6_Modem_TWRP, G920FXXU3ZPA1_Modem_TWRP)
Checked sim card in another phone/different card in this phone - if sim card would be invalid, would I still get missing baseband?
Xposed Imei Changer - it did change IMEI. But that's it. Baseband still missing.
*#0011# and other *# stuff..
And I have wiped /efs (it did generate new nv_data. Guess now even broken IMEI would make ma happy)
Any ideas ?
How can I know what can be wrong? /efs partition? wrong firmware combination? hardware issue?
In Samsung Phone Info I get empty on Modem Board, Hardware Revision,Samsung Serial Number,Baseband Version.
Than you for any help or idea!
tried smart Switch emergency reinitialization?
Just to be sure, knox is triped now?
I've soft bricked my g930f but managed to get it going again and it's rooted. However, along the way I have managed to lose my IMEI and some other info. I am currently downloading what I believe to be the original country firmware (trinidad / tobago) and will try flashing that when I have it. I don't know if this will restore the following information that is missing, as well as (I hope) enable me to once more connect with my GSM provider. If anyone knows whether this will work I would value the advice.
Using PhoneInfo, here is a list of the missing information on my g930f:
Country of Origin (this used to be Vietnam but is now blank)
Manufacturing Date
Product Code
Available CSC codes
Mobile Operator (there is actually a single comma in this line)
Baseband version
Modem Board
Hardware Revision
IMEI
Samsung serial number (a bunch of zeroes here)
Does it seem likely that the lack of a correct modem file is the culprit for these missing items? I do have the original IMEI number written down (it's also on the back of the phone.)
UPDATE: I tried this: http://forum.xda-developers.com/galaxy-s2/general/guide-recover-imei-9-steps-t1264021 but it did not fix my problem with the IMEI. I did have a backup of the EFS folder but it may have been taken after the damage had been done.
I am currently still downloading the Trinidad/Tobago firmware from Sammobile and will post what happens when I attempt to flash that.
How did you soft brick your phone? You flashed a firmware for other countries? I'm planning of flashing the unknown firmware from Sammobile too, please keep up updated. Thank you.
I once had a problem with the IMEI, but it was because the phone was blocked by the Mobile Company.
Greetings,
I would like to ask for anybody's help on fixing a dilemma that I can't seem to solve due to how limited my knowledge is.
Colleague messed up his phone very bad, he was trying to "Unlock" his phone through SamsungTool. Here's what happened;
1. Phone is carrier locked.
2. Read a guide that suggests that he should flash a "lower" baseband.
3. Flashed a lower modem file through Odin. Didn't backup EFS. But did take a photo of IMEI and S/N using *#06#.
4. Faced with DRK error. Phone is inaccessible.
5. Rooted the phone to remove DRK error.
6. Phone is now accessible. Used *#06#, IMEI is now 3500000000006, S/N is none.
7. Force flashed IMEI using Samsung Tool. Luckily, he took a photo of the *#06# details.
8. IMEI is now in place but MEID is different, S/N says "None"
Is there in anyway in fixing this?
Hello im using Verizon XPERIA Z2 D6503 'not tablet' and I have change the current firmware to Malaysia firmware from xperifirm. however when I change it, I cant get any signal from sim card like before. Only Wifi can be use. I hope anyone can help me and if I have to go back the original firmware, I hope I can get the frimware number or code? thank you so much. :crying:
wemiracle said:
Hello im using Verizon XPERIA Z2 D6503 'not tablet' and I have change the current firmware to Malaysia firmware from xperifirm. however when I change it, I cant get any signal from sim card like before. Only Wifi can be use. I hope anyone can help me and if I have to go back the original firmware, I hope I can get the frimware number or code? thank you so much. :crying:
Click to expand...
Click to collapse
First, check your system settings to see if it still shows your IMEI number, if it is gone or is all 0's, you will need to restore your EFS partition or restore your IMEI number.
If you still see your IMEI number, you might need to find a firmware that has a modem.img that works in your region/country, then extract the modem.img from that firmware and flash it on your device.
Sent from my SM-S767VL using Tapatalk
Droidriven said:
First, check your system settings to see if it still shows your IMEI number, if it is gone or is all 0's, you will need to restore your EFS partition or restore your IMEI number.
If you still see your IMEI number, you might need to find a firmware that has a modem.img that works in your region/country, then extract the modem.img from that firmware and flash it on your device.
Sent from my SM-S767VL using Tapatalk
Click to expand...
Click to collapse
Thank you for reply.. My IMEI still shown however my signal service still zero eventhough I put different sim card or try to turn on radio its still not change. Do you know where can I find that type of firmware that have modem.img because i dont think Xperifirm have it.
wemiracle said:
Thank you for reply.. My IMEI still shown however my signal service still zero eventhough I put different sim card or try to turn on radio its still not change. Do you know where can I find that type of firmware that have modem.img because i dont think Xperifirm have it.
Click to expand...
Click to collapse
It might not be a modem.img, it might be a modem.bin or some other type of file extension, the point is, you need a radio/modem file that is compatible with your region/carrier network.
You will have to search for all of the available firmware versions for your specific model number from all of the different regions/countries/carriers, then find out which of them use the same kind of network/radio bands that your region/carrier uses. When you find a firmware that uses the same network/radio bands that your carrier uses, download that firmware then extract the radio/modem file from that firmware then flash that radio/modem file on your device.
If you bought the device used, you might be having this issue because the device's IMEI was blacklisted before you purchased the device. If this is the case, you won't be able to fix the issue until you contact the original service provider to see why it was blacklisted and what they require in order to remove it from blacklist.
Sent from my SM-S767VL using Tapatalk
Droidriven said:
It might not be a modem.img, it might be a modem.bin or some other type of file extension, the point is, you need a radio/modem file that is compatible with your region/carrier network.
You will have to search for all of the available firmware versions for your specific model number from all of the different regions/countries/carriers, then find out which of them use the same kind of network/radio bands that your region/carrier uses. When you find a firmware that uses the same network/radio bands that your carrier uses, download that firmware then extract the radio/modem file from that firmware then flash that radio/modem file on your device.
If you bought the device used, you might be having this issue because the device's IMEI was blacklisted before you purchased the device. If this is the case, you won't be able to fix the issue until you contact the original service provider to see why it was blacklisted and what they require in order to remove it from blacklist.
Sent from my SM-S767VL using Tapatalk
Click to expand...
Click to collapse
Thank you so much for your help