hey,
I have Lenovo P780 with 4GB ROW.
I have tried to install lot of different custom roms through different methods. I have lost the IMEIs, and I have installed MIUI via SP flash tooll . IMEIs also gone, but after that I have restored very old backup of nvram only (done via other version of twrp)
IMEIs gone back. Right. But from both cards first (SIM1) I have very strange problems as I live in big city.
The phone very long looking for GSM signal, after that It looses signal frequently. The second SIM (SIM2)has the signal very rarely.
When I am going through the city centre the signal on SIM2 was very poor, rather there wasnt any it.
On the first SIM I have porblems with normal calling, but is better than SIM2.
I have tried different radios, all via install via TWRP. That not helps.
I suppose that I have probelm with baseband, kernel or maybe IMSI ?
PLease help me, I havent any other phone which would be as best as that one.
Thanks in advance !
bump
Related
Hi dudes,
i have a normal GT-i9300 NO BRAND. From the beginning i started with Ultima Rom and until version 12 and a provider CHANGE with the same number (from Wind to TIM, Italy) i never had a problem...after,starts the odd's show:
if turns on the WiFi...my device is like OFFLINE,is not reachable .KEEP ATTENTION: the signal is present, like -85dbM 14asu.But from the moment I do a phone call or i send a SMS...device turns back reachable, for a X period of time,after that: "offline" again.
I tried:
change modem (latest,oldest...)
downgrade of Ultima Rom and modem
upgrade until Ultima Rom V16 (4.3..)
pass to CM11 temasek unofficial V45 (4.4.2 GREAT ROM...)
pass to STOCK SAMSUNG ROM (with odin,latest version...my God,tried only for the test and quickly raging i came back to temasek)
used the same device with a different TIM sim
I did a deep wipe for new ROM installation,with Philz recovery...
NOTHING WORKS, the problem rest.
To Do:
try a different provider sim...for example WIND or 3 (for exclude a Provider problem...something related to communication protocols)
Try my TIM sim in another GT-I9300 always with CM11 temasek unofficial.(for exclude an HARDWARE problem...waiting for a my friend with the same device and rom)
Weird:
it seems that this problem is only in my home because from my workplace (another radiocell) i'm reachable also under wifi connection.
CALLED:
I called to my customer service TIM and they did a "format" of my sim and "account"...but nothing changes. They said that in my radiocell the signal is weak, they know that but they can't do nothing.
I REMEMBER that the problem began from the SWITCH from WIND to TIM,that not wanted,happened during an upgrade of Ultima ROM...
SO,the problem is of my device? Sim? Number? Provider?... WHAT THE H****?!
ANY SUGGESTIONS!?!??!
Skyfinder said:
Hi dudes,
i have a normal GT-i9300 NO BRAND. From the beginning i started with Ultima Rom and until version 12 and a provider CHANGE with the same number (from Wind to TIM, Italy) i never had a problem...after,starts the odd's show:
if turns on the WiFi...my device is like OFFLINE,is not reachable .KEEP ATTENTION: the signal is present, like -85dbM 14asu.But from the moment I do a phone call or i send a SMS...device turns back reachable, for a X period of time,after that: "offline" again.
I tried:
change modem (latest,oldest...)
downgrade of Ultima Rom and modem
upgrade until Ultima Rom V16 (4.3..)
pass to CM11 temasek unofficial V45 (4.4.2 GREAT ROM...)
pass to STOCK SAMSUNG ROM (with odin,latest version...my God,tried only for the test and quickly raging i came back to temasek)
used the same device with a different TIM sim
I did a deep wipe for new ROM installation,with Philz recovery...
NOTHING WORKS, the problem rest.
To Do:
try a different provider sim...for example WIND or 3
Try my TIM sim in another GT-I9300 always with CM11 temasek unofficial.(waiting for a my friend with the same device and rom)
Weird:
it seems that this problem is only in my home because from my workplace (another radiocell) i'm reachable also under wifi connection.
CALLED:
I called to my customer service TIM and they did a "format" of my sim and "account"...but nothing changes. They said that in my radiocell the signal is weak, they know that but they can't do nothing.
I REMEMBER that the problem began from the SWITCH from WIND to TIM,that not wanted,happened during an upgrade of Ultima ROM...
SO,the problem is of my device? Sim? Number? Customer?... WHAT THE H****?!
ANY SUGGESTIONS!?!??!
Click to expand...
Click to collapse
my guessing is that the problem is the sim card, probably damaged. you should try another sim card.
done yet, I wrote it I the "tried list" ... Another tim sim and the problem rest
Sent from my GT-I9300 using xda app-developers app
Skyfinder said:
done yet, I wrote it I the "tried list" ... Another tim sim and the problem rest
Sent from my GT-I9300 using xda app-developers app
Click to expand...
Click to collapse
yeah sorry, it was late and i was tired, didn't see that. well, it might be the antenna of the phone, you should go to a gsm service, they have the necessary stuff to point out the problem, even if it's hardware or software.
Could even be the sim holder .
I'm thinking that is an ANDROID or Modem problem related...specially with TIM communication protocols.
Is like if where there is a low signal,and you use Wi-Fi...device don't give energy to radio antenna,but to wi-fi. When you call or sending SMS,the antenna takes more power and the device is now reachable...
I should try a real old ROM with a real old modem...ufff...is all so boring -.- (i know,exist nandroid,but still boring is!)
Skyfinder said:
I'm thinking that is an ANDROID or Modem problem related...specially with TIM communication protocols.
Is like if where there is a low signal,and you use Wi-Fi...device don't give energy to radio antenna,but to wi-fi. When you call or sending SMS,the antenna takes more power and the device is now reachable...
I should try a real old ROM with a real old modem...ufff...is all so boring -.- (i know,exist nandroid,but still boring is!)
Click to expand...
Click to collapse
if you have a rom with modem that changed your efs partition to efs v2 and try to flash a rom that has modem with efs v1 you will loose your IMEI and S/N , unless you have a backup of efs v1.
darkmage93 said:
if you have a rom with modem that changed your efs partition to efs v2 and try to flash a rom that has modem with efs v1 you will loose your IMEI and S/N , unless you have a backup of efs v1.
Click to expand...
Click to collapse
THANKS FOR REMIND ME THAT! I've the back up of old IMEI and S/N Really thanks!
hello good night. i am writing from Portugal and the problem is this. i made an OTA update do the S222 row Kitkat and all went well. the phone boots normally and works well without the SIM cards. after i put the SIM cards the problem begun. the phone does not recognize the SIM cards and it pops up continually a message on the screen "com.android as stoped" whitch make virtually impossible to work with the phone.
i read that it might be a problem with the modem, could you tell me the best way to solve this situation ? can i flash only the modem with the recovery , and for portugal what would be the proper modem to flash ? 2G network work with 900/1800 and 3G with 2100
i saw the topic of stympy, and the diferent modems that he shows.
could you help me please, i would like to try kitkat but at the moment it is impossible for the reasons that i explained
thanks in advance and sorry for my english.
yagudin said:
hello good night. i am writing from Portugal and the problem is this. i made an OTA update do the S222 row Kitkat and all went well. the phone boots normally and works well without the SIM cards. after i put the SIM cards the problem begun. the phone does not recognize the SIM cards and it pops up continually a message on the screen "com.android as stoped" whitch make virtually impossible to work with the phone.
i read that it might be a problem with the modem, could you tell me the best way to solve this situation ? can i flash only the modem with the recovery , and for portugal what would be the proper modem to flash ? 2G network work with 900/1800 and 3G with 2100
i saw the topic of stympy, and the diferent modems that he shows.
could you help me please, i would like to try kitkat but at the moment it is impossible for the reasons that i explained
thanks in advance and sorry for my english.
Click to expand...
Click to collapse
Hi. To answer you question, you may try this:
First you must root your phone and install custom recovery TWRP.
Here:http://forum.xda-developers.com/lenovo-p780/help/rooting-tutorial-kitkat-t2835605
And here:http://forum.xda-developers.com/len...oot-install-twrp-custom-recovery-kit-t2849538
Now go to my post How about some modems, here:https://drive.google.com/folderview...&usp=sharing&tid=0B2ORIgaV4iacOVpDTDcxYW4taDQ
Download and flash ONLY the ones from EUROPA.
Good Luck.
hello. for now still no sucess, the message "unfortunately the process com.android.phone has stopped" keeps pop up, i tried several modems and none of them work. i will go on trying and them i will give feed back. thanks for the help
hello, maybe could you help me. i returned to the previous version that i had, installed, which is version X-viberom by xakep. the baseband version for that rom is the V52, which i presume is for chinese version. i think that the x-Viberom as chinese version for base.
with that baseband i never had any problem with the SIM cards, the two work without any problem .
the question that i would like you to help me is the following: with that baseband V52 i have to install a chinese rom or is it possible to install that modem over a ROW version ?
thank you very much for the help
hello. i already solve the problem, and after all it was so easy. i disable automatic date and time and automatic time zone and went to apps, phone and then i perfomr clear data and voila, the phone works perfect. thank you for all
Hi!
I have problem with my lenovo p780 4gb Chinese version (after 04.2014)
I am using vibe ui 2.0 (row version from sympty's thread)
I flashed couple Roms to find my favourite and probably messed up with the nvram.
I was having problems with no signal, nvram error in WiFi ect.
I couldn't restore my imei (done with mobile uncle but after reset the problem apeard again).
Decided to recover nvram.img but as I did not have my own backup I used one uploaded by sympty. (Before restoring nvram made a backup of my own messed up nvram, just in case).
After recovering sumptys nvram the problem with imei and nvram error in wifi disappeard . I noticed that I have symptys imei so I overwritten it with my own using moboleincle.
The problem is that I still get the network problem. No signal at all. Tried many modems also the one that have been adviced to me here (the one created by xaep).
Do You know what can cause this?
I noticed that in mobile uncle radio information the signal is not floating. Once it worked it was floating now it is still and shows 0 db 99 and.
What else could I mess up and how can I fix it?
Thank You guys in advance.
Erni1 said:
Hi!
I have problem with my lenovo p780 4gb Chinese version (after 04.2014)
I am using vibe ui 2.0 (row version from sympty's thread)
I flashed couple Roms to find my favourite and probably messed up with the nvram.
I was having problems with no signal, nvram error in WiFi ect.
I couldn't restore my imei (done with mobile uncle but after reset the problem apeard again).
Decided to recover nvram.img but as I did not have my own backup I used one uploaded by sympty. (Before restoring nvram made a backup of my own messed up nvram, just in case).
After recovering sumptys nvram the problem with imei and nvram error in wifi disappeard . I noticed that I have symptys imei so I overwritten it with my own using moboleincle.
The problem is that I still get the network problem. No signal at all. Tried many modems also the one that have been adviced to me here (the one created by xaep).
Do You know what can cause this?
I noticed that in mobile uncle radio information the signal is not floating. Once it worked it was floating now it is still and shows 0 db 99 and.
What else could I mess up and how can I fix it?
Thank You guys in advance.
Click to expand...
Click to collapse
Look arownd here... In Q&A section ! There are some tutorials about rewriting NVRAM section!
stympy said:
Look arownd here... In Q&A section ! There are some tutorials about rewriting NVRAM section!
Click to expand...
Click to collapse
So that means that I did not rewrite imie properly?
Also, I noticed that IMEI on the baterry is diffrent than IMEI on the back of the box. My phone have been in service in China, maybe they've made a mistake?
Erni1 said:
So that means that I did not rewrite imie properly?
Also, I noticed that IMEI on the baterry is diffrent than IMEI on the back of the box. My phone have been in service in China, maybe they've made a mistake?
Click to expand...
Click to collapse
Hi. What are the diferente betwen them?
stympy said:
Hi. What are the diferente betwen them?
Click to expand...
Click to collapse
Only first 3 numbers match, the rest is completly diffrent.
Erni1 said:
Only first 3 numbers match, the rest is completly diffrent.
Click to expand...
Click to collapse
This is strange. At least one of the IMEI'S from the box must be the same with the IMEI from the accumulator. They could switch the box on the service store, i think?
Sent from my Lenovo P780
stympy said:
This is strange. At least one of the IMEI'S from the box must be the same with the IMEI from the accumulator. They could switch the box on the service store, i think?
Sent from my Lenovo P780
Click to expand...
Click to collapse
Yes probably You're right.
Soo does it matter wchich imei I will use? The one on the box or the baterry one?
Also I am still facing the problem with network. Tried many modems. And now i eaven get the problem with sim card (mmi error).
I changed the nvram for the one i got from this forum.
Can't really rewrite imei with sn writer but managed to do it with mobile uncle. (It changes, but after factory reset it goes back to the imei i got when changed nvram).
I don't really know what else could that be. Maybe it is the rom?
I really like this phone, but I am starting to think of getting a new one without network problems.
Erni1 said:
Yes probably You're right.
Soo does it matter wchich imei I will use? The one on the box or the baterry one?
Also I am still facing the problem with network. Tried many modems. And now i eaven get the problem with sim card (mmi error).
I changed the nvram for the one i got from this forum.
Can't really rewrite imei with sn writer but managed to do it with mobile uncle. (It changes, but after factory reset it goes back to the imei i got when changed nvram).
I don't really know what else could that be. Maybe it is the rom?
I really like this phone, but I am starting to think of getting a new one without network problems.
Click to expand...
Click to collapse
Hi. It does not matter what IMEI you are running. It doe matter to have one .
With network problem it is the same! If you dont have IMEI you cannot acces any GSM network. You can change all the modems, if you dont have IMEI your phone cannot acces network.
And yesss.... MobileUncle Tool is an temporary solved problem.
I did not encounter this proble myself. I have saw this problem to others.
From what i have read i saw that this problem could be solved with an older firmware like s119, s123, s124. Dont know how but some of the users did write the IMEI for good.
You can change only the motherboard, or change all the phone and this one use it like power bank, nice agenda, or other uses.
Good Luck.
stympy said:
Hi. It does not matter what IMEI you are running. It doe matter to have one .
With network problem it is the same! If you dont have IMEI you cannot acces any GSM network. You can change all the modems, if you dont have IMEI your phone cannot acces network.
And yesss.... MobileUncle Tool is an temporary solved problem.
I did not encounter this proble myself. I have saw this problem to others.
From what i have read i saw that this problem could be solved with an older firmware like s119, s123, s124. Dont know how but some of the users did write the IMEI for good.
You can change only the motherboard, or change all the phone and this one use it like power bank, nice agenda, or other uses.
Good Luck.
Click to expand...
Click to collapse
Will try to go back to the older firmware like You said.
Basically if it doesn't matter what imei I have, than it is not the imei problem, because I do have imei after factory reset, only it is probably Yours (because i restored nvram uploaded by You ;D).
In such a case, maybe the firmware will help.
Hi people, I need your help. For few days already I have serious problem with my Redmi 3, No signal on any of my SIM cards. It happened since I have tried AOSP firmware. Tried installing official firmware in Fastboot and Download mode nothing helped. Only helps if I restore some old backup and than onlu second SIM have EdGE signal.
Any sugestion would be helpfull.
miljenko said:
Hi people, I need your help. For few days already I have serious problem with my Redmi 3, No signal on any of my SIM cards. It happened since I have tried AOSP firmware. Tried installing official firmware in Fastboot and Download mode nothing helped. Only helps if I restore some old backup and than onlu second SIM have EdGE signal.
Any sugestion would be helpfull.
Click to expand...
Click to collapse
Fixed by flashing qcn file found on xiaomi.eu forum. Issue was problem with band changed
I have a Jiayu S2 double-SIM phone, running the most up to date official ROM (4.4.2).
This ROM had a couple of bugs (no GPS and no notifications to external devices such as smartwatches), so I wanted to check other available ROMs. Using the Flash Tool I have tried a couple of the ROMs in the needrom site (https://www.needrom.com/category/jiayu/s2-jiayu/). In particular, a couple of versions of the official ROM, another ROM known as Salamander, and an unofficial port of Cyanogenmod 12 (in which the camera was not working).
The issue is that, for some reason, at some point my phone has stopped getting phone signal. The SIMs ask for the PIN on startup, but there is no signal. I have reverted to the original ROM; plus done a factory reset, and I could still not get signal.
The APNs for both SIMs are fine. Then I have realised that the IMEI was empty. Luckily I had it written down, so I have installed Xposed and the Device IMEI Changer, with which I have been able to restore the IMEI. Now I can see the IMEI on the Settings - IMEI information, as well as with *#06#.
But still, now with the original ROM, and with the IMEI restored, I still cannot get phone signal. I have tried setting the phone to flight mode, restarting, selecting manually the network... When trying to manually select the network I can see several networks, but the phone will simply not connect to the one it should.
Any idea on why could it be that I cannot get phone signal? Thanks.
After trying everything, including restoring the IMEI with Xposed, I have finally managed to restore cell service by restoring the IMEI with this tool: https://play.google.com/store/apps/details?id=com.cryptotel.chamelephon