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Old 06-13-2012, 15:50   #1 (permalink)
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Cool Coolsand 8mb/4mb cpu formatting info

Hello to All . .

Here I am providing some useful info about COOLSAND CPU Mobile Phones.

At the moment coming Coolsand 4MB and 8MB Flash ic's.

How to know which Flash ic is in mobile phone ?

Simple Click on Read info you will get like this:

if you see this flash size this mean you have 8MB Flash ic.

>>Flash Len :0x400000(4M)
if you see this Flash Size this mean you have 4MB Flash ic.

If you got phone with 8MB flash size then you must select FLASH TYPE:


These Both are 8MB Flash ic

Format Address for 8mb Flash chip is :

If you got phone with 4MB flash size then you must select FLASH TYPE:

Built-in Ct1129D
Built-in Ct8852D

These Both are 4MB Flash ic

Format Address for 4mb Flash chip is :

Note :

If you got any error During Write Flash then open phone and check inside what kind of Flash ic you have. if you found any of above ic and
you selected correct Flash ic then it Could be hardware or You have phone with DEAD BOOT. if you have phone which can READ flash but can't
write or format like this;

please press Power on/off button...
Flash ID : 00C84016
Flash Type: SF_GD25Q32
Flash Len :0x400000(4M)
>>Boot downloading complete!

after this you can see Software Stop here ( Stop button Changed to Run )
This type of problem Could be you have Phone with Dead Boot and These are Useless. You can't repair it except try to Rehot/Reball MCU.

Regards :
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Old 06-13-2012, 17:49   #2 (permalink)
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thanks for this nice info.
it will help many beginners

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