Basic and Useful Info About China Phone Software Repair (Learn Yourself)

[james343]

China Samsung S5570 GETEL

Initializing...
DA_LIB_VER_4.0.3.2
It is sensing the pinout fast,please hold on the phone Power key
RXD=7 TXD=5
Connecting...Please hold on the POWER key until the red gauge is going...
Any errors please select another boot and try again.
BB:6252, HardwareVer:8B00, SoftwareVer:CC01
Loading boot...
INT_SYSRAM_BOOT test completed.
Loading boot...
Boot2 test completed.
Nor Flash ID: 00EF004000170000
Nand Flash ID: 0000000000000000
Read Hardware Information is done.
Config EMI(Nor Flash only)...
H/W detection ok.
Get Project ID from phone...
Project ID: X239_TN_HB_FR2_V1_1

need china samsung s5570 flash file and nv file urgently plz help

[kk_amata]

thank you.very good please post all.

[durga143786]

nice work brother............................

[rajendra960]

very nice update thanks you very much

[abangandro]

Nice info and very helpfull forme....thanks alot

[Muhammad Ali858]

good information these are the basics of china phones.

[jitendra 1980]

thanks for useful information

[tonydubai]

keep it up thanks man

[braindead_05]

I want 2 open a new mobile repair shop ! So friends suggest me what tools needed ? I am 4m odisha.atleast what should needed.

[zahidalianjum]

thankssssssssssssssssssssssss for the post

[bijayprusti]

Thanks brother for Important information and i hope in future you also help us

[rkbizsecurelab]

good posting
thanks

[tablet-2012]

What is TX RX?
TX = Transmit, RX = Receive. type of connection which will help to you to connect your phone with pc for software operation. its just a type of connection name. dokunmatik telefonlar


what is cpu?
Central processing unit. A parts of phone. its type a head of phone. all phone have cpu but for china phone cpu is important for repair this phone. china phone have various type of cpu.


why cpu is important for china phone?
All other phone have cpu, uem, upp but for china phone cpu is important for repairing because various china phone cpu support various tool/device when you do software operation in phone.


How to know cpu type/model?
now many of device auto detect cpu type so no problem to know which cpu use in this phone which you want to repair. also you can open the phone and can see what cpu use in phone/what name write on cpu.

MTK


Spreadtrum


Infineon


Sky/Skyworks


ADI/AD


Philips


Agree


TI / Power Management


Mstar

VIA

SAMSUNG

SI4904

ANYKA

etc

what is flash chip and RAM?
flash chip store phone software in it. and RAM is extra built in memory which give space to phone and flash chip to extract phone software and operating in his memory when phone is open/running. some china phone flash chip and RAM include in one chip and some in cpu. so if your flash area or ram area is damage in flash chip, you must need to change total chip (CPU, Flash IC,) using many type of companies chip with under various model name, as like Samsung, Toshiba, Intel, ST etc


Flash chip name/model is important for china phone as like cpu?
Not like cpu but its important because when we flash china phone if we know what flash chip use in it then we can find perfect flash file.



what problem with china phone model name?
model name is not a big matter for china phone. because with same name have many many phone with deference pcb, pcb design, cpu, flash chip, gate up, software etc.


What need to know about a china phone when we repair?
1. CPU Type
2. Flash Chip model
3. Original software/flash file version.
4. Phone TX RX.

Flash file version is important for china phone?
Must. its very very important for china phone because though you lost your original (when manufacture company published phone) flash version or not know which file have in it first time, you got problem when you flash your phone. for flashing with wrong version/model flash file you got this type of problem-
1. Flash done but phone dead
2. white screen (no incoming/out going call)
3. white screen (with incomeing/outgoing call)
4. Keypad not work
5. Sim not valid
6. Sim blocked
7. Phone hang after power on
8. no network
9. have network but show emergency (this problem also do for power ic or bad connect sim or sim connector problem)
10. phone restart continuously.
etc.

Which tool or device?
many of free tool published in market for mtk, infineon, ad, spreadtrum, sky etc. but alwayes device give you a complete solution.














these are really very useful knowledge

[noorali_56611]

seful post thanks for sharing bro ... best of luck

[nainosoft]

Originally Posted by eihcir

Hi! I am from the Philippines. Just recently, I bought a china phone nokia 6300 dual sim(actually it wasn't my intention to buy china phone I was just fooled by their sweet words. I tried to visit in this site only to find out that my phone is a chinese device). Anyway, when I got home from buying it, the phone works fine in several minutes and I had not tried yet to insert another sim at the sim2 slot. But afterwards the phone reveals its problems. The first sim slot works fine in an open area where perhaps it could catch more signals but when inside the building the sim1 signal indicator would always display "no service" problem. Because of this, I was kinda curious what happens when I insert another sim at the sim2 slot... And I did inserted it. It works in several minutes too but afterwards more complicated problems than in sim1 happened. In sim2, the problem would always display "invalid sim" error...
One of my hobbies is technical and electronic repair but I have not studied it in any colleges... its some sort of curiosity to any devices that leads me to learn all by my self. It is just a pure hobby and nothing else!
But with the problems above it seems to be beyond my learning. I remembered that I downloaded a special program software called WORLD UNLOCK CODES so I tried it. I copied two written IMEI's in my 6300 cellphone(353066013435745 and 35306601345746) and pasted it to the WORLD UNLOCK CODES hoping that it would help me solve the problems. In the long run nothing works. Being suspicious if those written IMEI's in the 6300 is correct or valid, I tried typing *#06# and found out that the only IMEI that coincides with the written IMEI at the back of the 6300 was 353066013435746.
this was exactly revealed in the screen after typing *#06#:

IMEI
IMEI:353066013435746
IMEISV:78

IMEI:135790246811220

instead of 353066013435745, the other IMEI is 135790246811220.

My 6300 was made in finland as it is written at the back of the unit and the written code is 0514528

The unit is actually in a 2 day warranty but I could not avail it because of this “****IN’ CURIOUSITY” of mine. I already disassembled the device within the warranty period…. Huhuhu!
PLEASE HELP ME SOLVE MY PROBLEMS WITH THIS DOOMED CHINESE DEVICE…. I have my girlfriend waiting for my reply…. Huhuhu!!!!!!!

Well seriously, can you help me sir???? Pleeeeeaaaaaassssssssseeeeeeeeee!!!!!!!!!!

Your phone's NV data currupted, so contact mobile technician or write NV files from any china tool..