Don't ask how to hack password. (BIOS Passwords)
#44679 by ikossan
Sat Apr 28, 2007 11:38 pm
My laptop Acer TRavelMate 4152 NLCI, a Acer TravelMate 4150 & 4650 series, not restarted while upgrading BIOS and will not boot, the screen stand black, Power LED color is green , and the dvd driver is on, after that , nothing happends .
i undrstand that the bios upgrading is not succes.
so i have proceed to desassembling the laptop, a have got the service guide frome this link:
http://www.eserviceinfo.com/download.php?fileid=28287
photos of this operation:

Monitor:

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keyboard:

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central unit

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after opening the main unit:

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the fan and Fan heatsink

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the processor after demonting the heatsink on:

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the mothercard :
Image
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at the end the ROM memory chip where the BIOS reside: the flash eeprom sst39VF040:

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i desold the eeprom and reprogram it with the old bios file.
and i assemble all pieces of the laptop.
the operation is succesfull. my laptop run now.

(excuse my poor english)

Technical Specification of my laptop is:
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- Intel® Pentium® M Processor 740
(1.73GHz, 2MB L2 cache, 533MHz FSB)
- Intel® 915PM Express Chipset
- Integrated Intel® Pro/Wireless 2200BG
- Intel Graphics Accelerator 128MB
- 512MB DDR2-400 (Max 2GB)
- 60GB HDD , Weight 2.84kg.
- DVD/CD-RW Combo, 6-in-1 card reader
- 56K Fax/Modem, 10/100Mbps LAN
- 15.0" XGA TFT LCD(1024x768 pixel)/ S-Video Out
- Li-Ion Battery (Avg. 4 hrs. battery life)
- IEEE 1394 port, Infrared port
- Acer SignalUp wireless technology support