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View Full Version : second sim problem on chinese b889 dualsim phones


infogsm
02-09-2008, 02:03
can someone help on solving this problem !! when 2 sims selected on phone i get always searching for network on display and can t read 2nd sim with only first sim selected i have no problems !! how to solve it ? i have superdoctor box with the cable that feets this phone connecter 2x6 but can t connect at all !!! what s real pinout and how to solve the problem ! if possible to solve via infinity or multibox let me know too !!

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oh1jty
02-17-2008, 12:18
can someone help on solving this problem !! when 2 sims selected on phone i get always searching for network on display and can t read 2nd sim with only first sim selected i have no problems !! how to solve it ? i have superdoctor box with the cable that feets this phone connecter 2x6 but can t connect at all !!! what s real pinout and how to solve the problem ! if possible to solve via infinity or multibox let me know too !!

br

Pinouts for B889:
2 = RX_B
3= RX_A
4= TX_B
5 = TX_A
6 = GND

I have also problems with my B889 slave CPU IMEI, have tried to get help from multibox team, but nothing still going with only one SIM :mad:
Maybe going to scrap whole multibox and buy an Infinitybox, they seem to have better support.

infogsm
02-17-2008, 22:56
what is this pinout for ? both cpu ? i know that i have to repair imei on second CPU to make it work but i can t connect the phone !!!
any help chinese experts ??

br

tkowsar
02-18-2008, 05:53
what is this pinout for ? both cpu ? i know that i have to repair imei on second CPU to make it work but i can t connect the phone !!!
any help chinese experts ??

br

here is ur solution bro, see plz-
http://www.gsmhosting.com/vbb/showpost.php?p=3084950&postcount=1010

mr_shehab
03-03-2008, 15:42
thank you pro

.......................

infogsm
03-03-2008, 18:16
thx for what no solutions on that link ????

br

plapukay
03-29-2008, 21:11
Hi, i am so new to the forum. As far as i know for this model (b889) no need to use any box. They had a program which they can use to access the machine via USB cables. I dont know where can u get it but i saw it and used it in China, but unfortunately i cant share it. company rulez :( If possible can somebody show me how to reach the phone via boxes?

Cheers!

jawal
06-03-2008, 15:29
French language to this model please !

glontz
06-19-2008, 10:07
Pinouts for B889:
2 = RX_B
3= RX_A
4= TX_B
5 = TX_A
6 = GND

I have also problems with my B889 slave CPU IMEI, have tried to get help from multibox team, but nothing still going with only one SIM :mad:
Maybe going to scrap whole multibox and buy an Infinitybox, they seem to have better support.


who test ? work this pinout ?