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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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#1
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"Service Manual" CAUTION via eservicemanual.info
Hi,
Here is the reason I wanted the Service Manual. I wanted to find the location of the RTC/CMOS battery. When I recently turned on my HP Pavilion N3390 laptop, I get an ERROR: "0271: Check Date and Time Settings" during power up with the option to press F1 to continue or F2 for Setup. Also F10 diagnostics is available. No mater what I select, I must enter a password!!!! Note: I never set a password on this laptop, and I never had to enter a password in the past when I entered (F2) setup. I have no clue what password I should enter. John |
#2
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"Service Manual" CAUTION via eservicemanual.info
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#3
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"Service Manual" CAUTION via eservicemanual.info
It looks as if you'll have to reinstall the operating system on another drive.
Windows 7 (and other operating systems, I assume) have a feature that lets you restore the password from a thumb drive (or possibly other storage devices). This should, I think, protect you from password corruption. |
#5
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"Service Manual" CAUTION via eservicemanual.info
On 05/01/2013 16:38, mike wrote:
On 1/5/2013 7:49 AM, wrote: There's also the possibility that some glitch caused it to think it needed a password, or that the first boot after fixing the battery always asks for a password and instead of pressing enter, you banged on the keyboard and that got accepted as the new password??? I don't think there's any chance of finding a usable password recovery in published data...certainly not the manual. A few business laptops from around the Pentium III series, moved on to storing BIOS passwords in non volatile eeprom devices. Previously some used a private area of flash memory where the BIOS firmware lives, though I've rarely able to reset that by simply updating the BIOS. However I've hacked into some identifiable eeprom's using i2c, and been able to read the password in plain text! But that was sometime ago, I'd expect the devices now are well hidden and integrated - and the passwords stored encypted. The OP's laptop is of the Pentium III era. I'd say keep searching (maybe a battey, maybe not), and be aware the machine is in the N3300 series, so many similar variants to match. There are sites in vietnam (of all places!) that have a wide collection of detailed schematics beyond what's available in an official service manual! (I don't have links at present) Also many BIOS related recovery tutorials on youtube. -- Adrian C |
#6
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"Service Manual" CAUTION via eservicemanual.info
On 1/6/2013 2:24 AM, Adrian C wrote:
There are sites in vietnam (of all places!) that have a wide collection of detailed schematics beyond what's available in an official service manual! (I don't have links at present) Schematics links would be very useful to the community. |
#7
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"Service Manual" CAUTION via eservicemanual.info
On 06/01/2013 13:28, mike wrote:
On 1/6/2013 2:24 AM, Adrian C wrote: There are sites in vietnam (of all places!) that have a wide collection of detailed schematics beyond what's available in an official service manual! (I don't have links at present) Schematics links would be very useful to the community. I've posted before (googles me own 2011 post in sci.electronics.repair) Ahh, here.... There is a vietnamese web forum that has full schematics for many laptops. Paste the following into google site:kythuatvitinh.com inspiron 1545 You'll have to join the forum to download taking care to practice 'safe hex' with documents you may get. Yup, it's still going -- Adrian C |
#8
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"Service Manual" CAUTION via eservicemanual.info
On 1/6/2013 6:42 AM, Adrian C wrote:
On 06/01/2013 13:28, mike wrote: On 1/6/2013 2:24 AM, Adrian C wrote: There are sites in vietnam (of all places!) that have a wide collection of detailed schematics beyond what's available in an official service manual! (I don't have links at present) Schematics links would be very useful to the community. I've posted before (googles me own 2011 post in sci.electronics.repair) Ahh, here.... There is a vietnamese web forum that has full schematics for many laptops. Paste the following into google site:kythuatvitinh.com inspiron 1545 You'll have to join the forum to download taking care to practice 'safe hex' with documents you may get. Yup, it's still going Thanks, Kind of a scary site. Think I'll go find a live linux CD and turn off everything on the network and cross my fingers ;-) |
#9
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"Service Manual" CAUTION via eservicemanual.info
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