no boot after flashing xell

[jaycboy]

I have a very temprental falcon I flashed xell to nand now nothing no boot no lights no nothing tried to reflash couldnt detct flash controller anyone got a suggestion thanks in advance tested re solderd done a few jtags b4 but this ones puzzling me am pretty sure i have not blown any components etc i dumped nand 4 times before wrote xell then 1 red light reflashed nand booted fine resolderd jtag points flashed xell again nothing no boot couldnt detect flashe controller....p.s. i am using nand x

 

[rdubbs007]

Original or alternate SMC wiring??

 

[jaycboy]

original wiring and cool shrimps and jtag tool av removed jtag wiring when i resolderd am just concentrating on trying to read and write to the nand again

thanks

 

[rdubbs007]

Are you sure the CB is exploitable? Have to ask...

If there is no flash controller detected, there may be some solder splash about the motherboard or something. Most likely it is a bad flash to the nand chip and it needs to be shorted out so it will recognize...

 

[Martin C]

It's possible you've written the wrong SMC to it. This would go along with no power and no flash controller. You'll need to do a 'bad flash' method to spark it back to life.

 

[jaycboy]

many thanx guys al try shorting the pins out and other methods

apreciated thanx

 

[Martin C]

Are you sure the CB is exploitable? Have to ask...

If there is no flash controller detected, there may be some solder splash about the motherboard or something. Most likely it is a bad flash to the nand chip and it needs to be shorted out so it will recognize...

Sorry, didn't read your entire post.

 

[jaycboy]

cheers for all ya help guys am gunna try after the wife has watched the soaps


mucho thanx !!!!

 

[M AzeeM K]

Although this may not be related to this, but since this a Falcon, you can use either an old 203W Xenon PSU with it, or the 175W Falcon PSU with it. Which one were you using when you wrote to the NAND for the first time?

 

[jaycboy]

hey am using a xenon power pack for reading and writing but good news i shorted the nand chip with a screwdriver hey presto saw flash chip let me write my old nand.bin boots like it should now gunna resolder underneath as ive noticed the db1f1 point is a little brittle but thanks for every bodys help problem solved !!!!

muchos thanks guys

 

[TilVl]

I had a hard time with DB1F1 and had problems like yours.

Change TMS to AUD_CLAMP and Run. TDI To open tray. There is a image in Jtag Tool to the right point.

Flash Xell by selecting Alt Method AUD CLAMP/ OPEN TRAY.

You will not have any more errors.