Što ako je BIOS uništen prilikom flasha ...

[Paske]

Svakome se kad / tad dogodi da iz bilo kojeg razloga ne uspije BIOS flash. Večina ljudi koji se zabavljaju OC-om eksperimentiraju sa raznim beta BIOS-ima, pa je šansa za probleme veča.

Ovdje je tutorial za ABIT ploče, ali može se koristiti za sve ostale ploče također.

Dolje je link na original post i copy / paste sadržaja. Stvarca je nađena dok sam kopao po Abit forumima ...

* NAPOMENA: Ne odgovaram za bilo kakvu štet, probleme, nedače ili bilo što negativno, a da je proizašlo kao rezultat ovog posta. Ovo je tek savije za ljude koji se nađu u gabuli.

Tekst je na Eng - vjerujem da ga svi znate, ako ne, ha kaj vam ja mogu ^^

link: http://pages.sbcglobal.net/jefn/bootblock.html

copy / paste ( tekst je skračen zbog ograničenja znakova do 10 000 na forumu, za puni tekst - link ):

Once in a while a BIOS flash fails or, for any number of other reasons, your BIOS becomes corrupt, you will find that your system will not boot. With newer BIOS releases you may receive a screen that the AWARD BootBlock BIOS is attempting recovery and that it's searching for a diskette. For example:

Award BootBlock BIOS v1.0
Copyright (c) 2000, Award Software, Inc.

BIOS ROM checksum error

Detecting floppy drive A media

With older BIOS' (and at other times) your system will appear to be dead, with the exception that it attempts to boot from the diskette drive and then hang.

In the above scenarios, your BIOS is probably corrupt and the system is attempting to read the floppy. In these cases the BootBlock is attempting to recover your BIOS. The BootBlock is a portion of the BIOS which will sometimes boot when the BIOS itself has been corrupted to enable you to boot to a floppy and reflash. Sometimes it works, sometimes it doesn't.

In order to attempt the reflash, prepare a DOS boot diskette with no CONFIG.SYS (remember: if you prepare a boot diskette in Windows, CONFIG.SYS may be hidden by default, so it will be necessary to change your view settings in order to see it).

Download the latest BIOS for your board and unpack it into a work directory on another system's hard disk. You'll get as many as five files. The two you are interested in are named xxxxxx.BIN (replace xxxxxx with the name of the BIOS .BIN file that you are attempting to flash) and AWDFLASH.EXE. Copy these two files to your DOS diskette.

Create a single line AUTOEXEC.BAT on the diskette containing:

AWDFLASH.EXE xxxxxx.BIN /CC /CD /CP /F /R /PY /SN

Note the spaces after .EXE and .BIN and before each "/" in the above command.

Prior to flashing with your recovery diskette, remove the power cord and open up your computer (you're going to need to crack the case after the flash anyway in order to manually clear your CMOS). Disconnect all drives, except your floppy drive.

Several users have reported back that they were able to recover from the BootBlock when advised to disconnect everything except the floppy drive.

To flash with this diskette, place the floppy in drive A:, power up your system and (hopefully) after several minutes your system should reboot itself. When your system reboots, press DEL at the POST screen and shut your system down. Because your BIOS was corrupt, you should clear your CMOS settings manually using the following procedure:

Remove the main power cord.
Remove the motherboard battery (optional).
Move the Clear CMOS jumper (CCMOS1 on Abit boards) from pins 1 and 2 to pins 2 and 3.
Press your power switch several times to discharge any remaining power from the motherboard.
Wait a minute or two.
Replace the motherboard battery (if you removed it).
Move the Clear CMOS jumper back to pins 1 and 2.
Reconnect your drives.
Close up the case.
Restore the power.
Power up and press DEL during the POST to get into the BIOS setup screens and reenter everything.

In order to properly detect your CPU and memory, remember to start your reentry of BIOS settings with the selection of Load Optimized Defaults.

Don't forget to remove the diskette (or you'll likely boot to it and run the flash all over again).

You should see what's happening on the screen with new motherboards. With many older boards, you will be running "blind" unless you have an ISA Video Card installed in your system.

If nothing happens and your floppy doesn't start to access after a few minutes, power down and try again - sometimes it takes several attempts to force the BootBlock to start running the flash.

The AWDFLASH.EXE command modifiers used above are:
/CC = clear CMOS data after programming.
/CD = clear DMI data after programming.
/CP = clear PnP (ESCD) data after programming.
/F = use flash routines in the BIOS for programming (force flash).
/R = reset system after programming.
/PY = program flash memory.
/SN = don't save existing BIOS.

To view all of the modifiers for AWDFLASH.EXE, type the following at a DOS prompt:

AWDFLASH.EXE /?

Another nifty method to recover consists of placing AWDFLASH.EXE and the currently installed BIOS .BIN file on a formatted diskette (no operating system required).

Again, prior to flashing with your recovery diskette, remove the power cord and open up your computer. Disconnect all drives, except your floppy drive.

When you boot your system and the POST messages appear (as above with the BootBlock message), press ALT + F2 to attempt recovery. Sometimes it works, sometimes it doesn't.

For some reason, the BootBlock on some Abit NF7 BIOS releases (and maybe some others) seems to require AWDFLASH.EXE version 8.22a for this method. Pick it up here.

Again, sometimes it takes several attempts to force the BootBlock to start running the flash.

Continue with the instructions above to clear your CMOS settings in order to complete your recovery.

If you cannot get the BootBlock to flash, your chip may be too corrupt to recover using the above methods. Some options are:

Abit Forum Member Tmod offers a BIOS replacement service at a very reasonable cost. See his biosmedic.com website for details.

If you have a friend with the same motherboard or one that uses the same or a plug compatible BIOS chip - see this list (thanks to Tmod), you may be able to "Hot Flash" your chip using your friend's motherboard. To do this you prepare your BIOS flash diskette as indicated above EXCEPT you do not include the AUTOEXEC.BAT file (you do not want this diskette to "auto-run" on your friend's computer or you may owe him or her a new BIOS chip as well!).

A chip-puller tool is recommend for Hot-Flashing.

If you don't have a chip puller tool, prior to booting your friend's system, remove the BIOS chip from your friend's motherboard - you can use a straightened paper clip with a small bend at the end to reach under the removal points on opposite corners of the chip. Place two pieces of fishing line or dental floss tied diagonally under both chips (the chip requiring hot-flashing and your original chip), with ends long enough to pull with your fingers. Gently reinstall the chip. This will facilitate easy removal for your Hot-Flash - you can simply pull up on the fishing line or dental floss to remove the chip. You'll want to tie the dental floss or fishing line (with the knot toward the top of the chip) so that you don't accidentally pop the chip up in the air and lose it or damage it in the running fans on the hot-flash system.

Boot your friend's system with your BIOS flash diskette. At the DOS "A>" prompt, gently remove the chip from your friend's motherboard and replace it with your chip. Take extra care that you do not bend any of the pins on the chip or touch any of the contacts with a metal tool. Carefully insert your corrupted chip, aligning the chip in the same manner as the chip you removed.

Flash your chip using the command:

AWDFLASH.EXE xxxxxx.BIN /F /PY /SN

Do not include the "/R" command switch as listed in the first section. Do not include the switches to clear the CMOS memory (otherwise it will be necessary to reprogram your friend's CMOS memory when you replace his or her chip). When you receive the "Press F1 to reboot" message, shut your friend's system down. You do not want to reboot your chip on your friend's system unless it is exactly the same model and revision motherboard!

Remove any dental floss or fishing line from both chips. Replace your friend's chip and then replace your own chip in your system.

Continue with the above instructions to manually clear your CMOS settings in order to complete your recovery.

See Tmod's tutorial for further instruction.

Pay a visit to http://www.abit-usa.com/abitparts/bios_chip.php to order a replacement BIOS chip for your motherboard. You are expected to pay a nominal handling charge, plus shipping. Abit offers their replacement service to the United States and Canada only (Canadian customers take note of the link on the above page).

Good luck with your BIOS Recovery!

Jef

Thank you cloudy1 for providing this information!

[Codiac]

evo jedna korisna stvar.

links nudi usluge prefleshavanja biosa pa ono ako zeznete nesto da znate gdje otici.

ja se pak idem plakati bubbi kada se moj korupta