Basic information about china phone.

[bgreat]

Basic information about china phone.

What is TX RX?
tx rx is type of connection which will help to you to connect your
phone with pc for software operation. its just a type of connection
name.


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 very important. china
phone have various type of cpu.


why cpu is important for china phone?
all phone have cpu, uem. but for china phone cpu is very important
because various china phone cpu support various tool/device when it do
software operation in phone. so though not know which phone have which
cpu face problem when you repair it.


How to know cpu type?
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.

MTK, Spreadtrum, Infineon, Sky/Skyworks, ADI/AD, Philips, Agree, TI /
Power Management, VIA, SAMSUNG, also come new CPU name is SI4904


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. 99% china phone
flash chip and RAM include in one chip. so though your flash area or
ram area is damage in flash chip, you must need to change total chip.
useing 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?
must. its important as like cpu because when flash china phone though
we not know what flash chip use on it, we can find perfect flash file
for it. otherwise with wrong chip flash file phone is going dead.



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. Connector Type
5. How pin have in connector.

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.


....::::Format Method::::....


Working For Which Problem:

1. Dead Phone

2. Restart Phone (with sim/without sim)

3. With Sim Phone Is Restart

4. Ringer Not Work

5. Mic Not Work

6. Bluetooth Not Work

7. Keypad Not Work

8. Phone Hang (Phone on but no incomeing/no outgoing/key not work)

9. Camera Hang

10. With MemoryCard Phone Not Power On

11. With Sim Card Phone Not Power On

12. Insert Sim

13. Emergency (network problem)

14. Call Hearing Spker not work.

15. Late Power On


this problem solv by format but its not true they allawes solved by format, so.....



Before Format!!!

Remember, befor format allawes readback ur phone current flash file,
because sometimes after format previous on phone not power on, though
not power on after format reflash ur phone with readback flash file
(though ur CPU is MT6226BA, don't forgate Decypted ur readback flash
file otherwise ur phone is dead still)
_________________

if its useful for u then Don't forget to say
thanks

[.::skybird::.]

Please don't waste member's time by this copy paste solutions!!!
show here something new if you have....

[juliana marce]

Do you have any sample?

For our reference?

[bgreat]

Originally Posted by .::skybird::.

Please don't waste member's time by this copy paste solutions!!!
show here something new if you have....

brother its not copy paste solution its knowladge who will help for new guys. ok brother

[LYOR]

look for pin aout all model is seam chinese mobile

[InfinitySupport]

Hello,

Here is one more educational project: http://forum.gsmhosting.com/vbb/showthread.php?t=544521

[R.com]

thanks brother china is good information

[GAYATRI MOBILE]

don't forget to say thanks....................