Wrong bios flashed, mem bank gone

[gd5497]

I have an Xecutor3 chip. Being a newbie, I flashed the bank ON OFF OFF OFF with the wrong bios and now when I boot from it it will turn on and off quickly and then back on with no video and the xbox LED flashing green/red. However, I managed to flash OFF ON OFF OFF properly and everything is ok. How can I recover the first bank of memory that I messed up?

Secondly, when I turn the box on to bypass the mod, I get a "xbox service screen".

If anyone can give me some suggestions, that would be great. Thanks.

 

[Vyrus]

Press both power and eject button to boot to your backup flashbios, then switch your bank settings to - on on off off - for Bank 1234 NOT - on off off off. Then after setting the bank flash your chip.

 

[fxE20170]

doesnt that depend on the bios he is loading though like 1959 is 1mb therefore you need on,on,off,off ?

 

[KissMyWookie]

The "your xbox needs servicing" screen just means that you're trying to boot to the MS dash with your harddrive unlocked. If you relock your drive you'll be able to boot normally.

 

[Vyrus]

doesnt that depend on the bios he is loading though like 1959 is 1mb therefore you need on,on,off,off ?

yes it does depend on the size of the bios, but he mentioned how his bios that he flashed on the 2nd 1mb bank works which makes me think he was trying to do 1mb flash on 1st bank but he thought 1st bank was on off off off which is instead really on on off off

 

[gd5497]

I'm embarrased to say that I may have given some wrong info. Let me try this again.

ON OFF OFF OFF=flashing red/green, no video, nothing (this is the bad one)
OFF ON OFF OFF=evox bios and boots to my evox dash (all works fine)
OFF OFF OFF OFF=xecutor bios and boots to dash (all works fine)
ON ON OFF OFF=xecutor bios and boots to dash (again, all good)

I tried booting from backup (power+eject) and then switch to ON OFF OFF OFF (the bad bank) to flash the X3_1959. Flashing worked but still the problem as mentioned above. Hope this clearifies things. Thanks.

 

[manu_xl]

The "your xbox needs servicing" screen just means that you're trying to boot to the MS dash with your harddrive unlocked. If you relock your drive you'll be able to boot normally.

your xbox needs service may have several reasons.
therefore it always displays a number

only number 5 is unlocked hdd