[MT6572 Primo F2] SIM not detected, pttycmd1 not found, NVRAM empty

[MT6572 Primo F2] SIM not detected, pttycmd1 not found, NVRAM empty - General Questions and Answers

I 'whole formatted' my MT6572 based Walton Primo F2 phone with SP Flash Tool.
Then I flashed the official firmware of this phone with SP Flash Tool.
Now the phone works fine but it does not detect SIM.
Also, the IMEI is shown as 'Invalid' for both SIM slots when I input *#06#.
When I try to fix IMEI from MTK Droid Tools it shows 'ERROR : pttycmd1 device NOT found!'.
Also, MTK Droid Tools shows 'Baseband v: -----'.
I am sure the problem is that when I formatted the phone it wiped the NVRAM region too.
So the phone has no baseband or radio files right now.
Although, WiFi still works perfectly.
Now the official firmware of Primo F2 does not contain any nvram.bin file.
It does contain a BPLGU file but I can't seem to modify IMEI with SN Write Station or Maui META etc.
Probably SN Write Station and Maui META etc. only modify IMEI when baseband or radio files are already present on the phone.
So I think the only way out for me is to flash a nvram.bin with SP Flash Tool.
Any ideas whether I am on the right track or not?
If I am, then how can I get nvram.bin file for my phone?
Can it be generated from BPLGU file somehow?
As you people can see that I have tried a lot of things, so please suggest/advise accordingly.
Any help would be appreciated

have you got rooted sir ?
if you have, you must press ROOT button first to change IMEI and restore NVRAM.bin from your stockROM

what was d way out eventually
Hello. I'm stuck with the same problem too. Thought mine is with a tecno f7. I was wondering how you finally got to fix urs. Please share. Somebody. Anybody. Thanks

Any Progress on this issue ?
Hello threatalive/buggiemannie
I am facing EXACTLY the same issue for a lesser known brand (iOCEAN). Did you guys resolved this issue earlier? Any help, greatly appreciated!!!
Thanks

Related

[Q] Zte v987 bricked, how to fix.

First of all, hello.
Second, let me explain the problem:
I accidentally soft - bricked my ZTE V987.
That would not be a problem if I didn't also lose my ROM backup.:crying:
What I did so far while trying to fix it:
1. Tried to re - install Bruno's CWM recovery through SP flash tool - was unable to. SP flash tool enable dram fail error.
2. Found out I needed a preloader.bin, found one that worked (have found few preloader.bin files for v987 but all failed to flash except one) - flashed that.
3. Tried Cwm again - success.
4. Instaled Bruno's 3.0 mod rom through CWM, success, but lost Baseband, IMEI, Serial Number, BT and WIFI MAC Address.
5. Tried installing zte v987 china stock 1.0.1 rom through cwm - success, have baseband, but no IMEI, no Serial Number, BT and WIFI MAC Address.
6. Found about sn write tool, used it to restore IMEI and WIFI MAC address - success, BT & SN - fail: SN says it is written yet it is always displayed as 0123456789ABCDEF, but BT MAC sn write tool always fails with BT DB write fail error.
So, from what I managed to figure out, I need either a full ROM Dump from a working ZTE 987, and a way to insert all these numbers back in, or any other way to fix my phone.
To anyone willing to help, thanks in advance, and if this thread is in wrong subforum I am very sorry.

v987 bricke to
hello
I have the same probleme with no sim detection, I trie to restore with this tuto http://forum.xda-developers.com/showthread.php?t=2461059 but I have no baseband no imei ... but wifi ok and BT ok
where have you find "zte v987 china stock 1.0.1 rom" ? i have find only update.
thank for your reply
and sorry for my english
Patrick

Flash with stock firmware. It will 100% working.
Sent from Xda Premium 4

hello amit9734
i am sorry but i dont have stock firmware
Where I can find it ?
thanck

V987 IMEI invalid
I have a very similar problem; V987 showing invalid IMEI numbers but WiFi, BT etc all working. SN shown as 123456789ABCDEF. Phone does not recognise the Engineering mode code or offer an option to enter it via Gravity box. I can't get the IMEI & SN Writer tool to recognise the phone.
I have another V987 with stock ROM - does anybody know how to dump the ROM so I can copy it to my other phone?
(The links to the stock ROM on Bruno's thread do not work)
Edit: Problem solved! I used MTK tools to make a NVRAM dump of the stock ROM then the Flash tool to copy the ROM to my old phone. The strange thing is that the phone remembered the correct IMEI and SN numbers. I now have two fully working V987's!

ChiPhoneUser said:
I have a very similar problem; V987 showing invalid IMEI numbers but WiFi, BT etc all working. SN shown as 123456789ABCDEF. Phone does not recognise the Engineering mode code or offer an option to enter it via Gravity box. I can't get the IMEI & SN Writer tool to recognise the phone.
I have another V987 with stock ROM - does anybody know how to dump the ROM so I can copy it to my other phone?
(The links to the stock ROM on Bruno's thread do not work)
Edit: Problem solved! I used MTK tools to make a NVRAM dump of the stock ROM then the Flash tool to copy the ROM to my old phone. The strange thing is that the phone remembered the correct IMEI and SN numbers. I now have two fully working V987's!
Click to expand...
Click to collapse
ok thank I just have to find another V987

Ziko_Tamburash said:
First of all, hello.
Second, let me explain the problem:
I accidentally soft - bricked my ZTE V987.
That would not be a problem if I didn't also lose my ROM backup.:crying:
What I did so far while trying to fix it:
1. Tried to re - install Bruno's CWM recovery through SP flash tool - was unable to. SP flash tool enable dram fail error.
2. Found out I needed a preloader.bin, found one that worked (have found few preloader.bin files for v987 but all failed to flash except one) - flashed that.
3. Tried Cwm again - success.
4. Instaled Bruno's 3.0 mod rom through CWM, success, but lost Baseband, IMEI, Serial Number, BT and WIFI MAC Address.
5. Tried installing zte v987 china stock 1.0.1 rom through cwm - success, have baseband, but no IMEI, no Serial Number, BT and WIFI MAC Address.
6. Found about sn write tool, used it to restore IMEI and WIFI MAC address - success, BT & SN - fail: SN says it is written yet it is always displayed as 0123456789ABCDEF, but BT MAC sn write tool always fails with BT DB write fail error.
So, from what I managed to figure out, I need either a full ROM Dump from a working ZTE 987, and a way to insert all these numbers back in, or any other way to fix my phone.
To anyone willing to help, thanks in advance, and if this thread is in wrong subforum I am very sorry.
Click to expand...
Click to collapse
Hello! I have a question! How did you complete step 2? I still have my V987 bricked and I can't seem to find an appropriate preloader.bin to wake it up again. I know I'm not exactly helping you, but I would be so grateful if you can help me out with that! I have less than 5 hours with this new ZTE and I already messed it up