[JAM, MDA Compact, S100 General] sajib:
Hello there i got some probs here releted to GPRS, Network Registration and Call Missing...

They are odd and annoyning..so please read through the topic and if possble then gave me some feedback on how to solve the probs..

My Problems Are...

1) if i insert a sim into i-mate jam which is gprs anabled 4m the service provider...then it take 2-3 minute to show the network bar after a reset....but it doesnt happen if i insert a sim from same provider which gprs is deactivated.....

2)And sometimes i just do miss calles even i have full network but others called me and hear that the computer telling my cell is off or out of network covarage...and on that times if i want to do any network tasks like checking my credit by *566# then my jam hangs in phone menu for 1 min then show failed then reregister my network..this think is doing frequently..as a result i have to check that am i in hanged network or not if im on hanged network i cant receive or make call i have to do a reset to get rid of that probs..but again after some hour it came back again..(full network-but cant receive call or make call)..

3) and when the gprs activated sim is inserted and after 2-3 minuted when network bar and "G" icon came i cant log into gprs connection which shows a error "the answering modem is disconnected......tap setting" just after i select connect....even it didnt try to connect..means just it showed up instantly no trying as it happend in earlier farmware which was releted to caller id software... but i found a solution for it (My problem)...

the think i have to do is...go to start>setting>phone>network>network selection..then select manual...after a searching i select my network operator 4m drop down list...then after a minute or two i became again register to the network...then i again select automatic 4m the network list...this time the network search doesnt occure and now i can connect to gprs as usual..... (notes i need to do the same process everytime i reset the device otherwise i cant connect to gprs...and i have to complete the cycle..means after selecting manual and then 4m the availaval network list i register to my operator....but even this time it cant connect gprs...only after that process when i select automatic again then i can connect gprs)

all this think happen to those sim which have gprs connection...means "after inserting those sim the "G" icon appear"...the sim's which are not gprs activated "Means "G" icon doesnt appear after inserting the sim" is not affected by this problem....(for those sim the network bar came just after a reset no legged time..just normal..and call missing probs is not present..but i cant use gprs in a non activated sim!!!!...if i active gprs in that same sim by calling the service provider then the problem started to occure)

NOTES:

i have switched a number of sim 4m 2 provider.....for operator with EDGE support (My operator) has the problem in gprs activated sim..but not in gprs deactivated sim... and another operator which have old gprs only (no edge support) is not effected by this problem..means i can connect to gprs and network legging is not present..

i have done a number of hard reset.....

i tried it in a clean jam with no software..or ex rom installed...

i have intalled the latest firmware from here.... 1.13 and radio 1.13

even did tried it in older firmware 1.11 with various radio started 4m 1.01,1.06,1.11 and others

my network operator run on 900mhz frequency... (GrameenPhone-Bangladesh)

i was able to use the gprs as usual even a month earlier without any problem...it started recently 4m the day the regisrtation to network lag problem started....so im sure they are releted with each other...

i also tried changing the gprs slot 4m setting menu....

i have used the sim(s) in another jam i owened....there has no such problem... on that set everything works ok.

Other nokia or sonyerricson set is also working...so i dont think it is a network probs..

all the other pda funtinallity other then the phone portion works great...no probs atall there..so i guiss it has omething to do with radio portion..

and all gprs desabled sim works flawless in that set...

but nothing is helping me other then of the network selection method i mentioned earlier (first manual>then again automatic...)

now my question is what can i do???

1) to solve the network bar problem (means registration to network) which came after 2-3 minute after the reset...so i cant call within 4 minute after reset...cant even go to prone pad..it doesnt came before the network bar came...

2) why i cant connect to gprs without doing that nasty trick....i have mentioned earlier...

3)And is it a hardware fault or rom fault??or in somehow my operators fault as another operator sim works flawless..

PS:recently i montored that i can update firmware via activesync/pc as usual the i-mate's one or t-mobile one with noid..but if i tried to do update via SD card then the radio portion doesnt updates...

as an example i have 1.11,1.11 rom-radio combination installed..and i have a earlier backup of bigstorage rom of my jam with rom radio combination 1.13,1.13..but after doing the sd update only the rom portion did updated to 1.13 radio is still in 1.11...though i can updated it later on by pc using activesync..

and again with ntrw writer i did copied only the radio file (1.13) to my sd card (downloaded 4m ftp of the forum...the dumped sd card one not the nb1 file.)..but when i tried to update in bootloader mode it gave me a error called "section 1 error" and it doesnt start the flash..though the complete rom package did updates via bootloder but again radio portion didnt updated..

Anyways if anyone can enlighten me on how to solve that very stupid problems then i will be greatfull!!

Thanks