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badog
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Joined: 01 Nov 2006
Posts: 1021
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 Posted: 2006-Sep-20 Wed, pm2:33 |
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| Post subject: 某大侠升级ROM失败了. |
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Last week I opened my Zaurus SL-7500C and replaced the Flash chip with a K9F1G08UOM. (My original chip is also K9F... the only difference is the capacity).
I carefully checked the pins to make sure they are properly connected. Then I booted to the Service Menu using Fn+D+M. The up-right corner of Sevice Menu shows "SL-C760". But the chip wasn't properly recognized. Clicking on the version list gave me the following information:
CPU: PXA255 A0
Board: c760
Serial No: 00000b0d
ROM Checksum: bca1
RAM Size: 65536KB
NAND modules(0MB)
unknown[unknown]
I tried all the NAND Flash related command (NAND restore and NAND Full Erase) in the service menu and they all gave me an "Error -2". Restoring NAND backup or installing U-Boot didn't work either.
I can't put back my original chip because I damaged it when I removed it. (There must be some glue under the chip.) So basically my 7500 is dead.
I heard that somebody has successfully upgraded their Flash chip. So maybe he can share his experience with me. I'd be very appreciated.
Last edited by badog on 2006-Sep-20 Wed, pm2:47; edited 1 time in total |
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badog
论坛管理员
Joined: 01 Nov 2006
Posts: 1021
小企鹅: 6575
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| Posted: 2006-Sep-20 Wed, pm2:36 |
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看来只能找原拆机图看IC的芯片型号了,然后再焊回.
我说过几次ROM升级,只有人谈,升的人不多.升RAM是没有问题的.
可爱小白鼠.
修复时,如回去顺便升级RAM. |
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chyang
Joined: 06 Nov 2005
Posts: 221
Location: Beijing
小企鹅: 500
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| Posted: 2006-Sep-20 Wed, pm10:53 |
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7500c he can ask jinfeng for repair.
_________________
Symbol CF WIFI+Corsair 2GB SD
SL-5500+Sharp-3.13 ROM+Viking 512MB CF+Kinston 256MB SD
Socket CF Bluetooth + EagleTec CF Lan Card + EagleTec CF Modem
Histroy:
[SL-C3000]
[SL5500+Sharp-3.13 ROM+SimpleTech 64MB CF+Hagiwara 128MB SD] Lost on 18,March,04 |
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wbx321
Joined: 04 Feb 2007
Posts: 3
小企鹅: 91
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| Posted: 2007-Feb-24 Sat, pm3:09 |
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我想rom里有sharp的一些东西,硬件级驱动什么的
ram应该容易的多 |
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mayonge1
Joined: 24 Jul 2007
Posts: 3
小企鹅: 78
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| Posted: 2007-Jul-24 Tue, pm5:03 |
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| Post subject: NAND FLASH 不单纯容量不同,时序不一样,不可以随便升级的.事先查查资料!!! |
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NAND FLASH 不单纯容量不同,时序不一样,不可以随便升级的.事先查查资料!!!
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HELLO WORLD! |
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