Help, Xbox360 E E79 error

[wmb88]

Hello, Hope this is the right section to post for help.

I have a Xbox360 E 4GB to glitch. I dumped 2 identical nand and installed CR3 Lite, but for some reason, I could not turn it on.
Ok, I removed all my installs, cleaned all solder points , flashed original dump back for the first time, fired it up again, it booted fine.
So, I know, my dump was ok and the Xbox was still ok.

So, I went on installing the RGH again, but after wiring up, the Xbox won't just glitch at all. No blinking green light. I checked everything but found no visible fault.
I had to remove everything again, cleaned all solder points , flashed the original dump back for the second time. But this time it shows E79 after firing up.

I formatted the 4GB nand and wrote the original dump back for a few times , but every time, it still E79

What could be the problem? Please help.

 

[Dadko]

First of all, post us some photos of your install, cr3 and logs.

 

[Nintendo]

Hello, Hope this is the right section to post for help.

I have a Xbox360 E 4GB to glitch. I dumped 2 identical nand and installed CR3 Lite, but for some reason, I could not turn it on.
Ok, I removed all my installs, cleaned all solder points , flashed original dump back for the first time, fired it up again, it booted fine.
So, I know, my dump was ok and the Xbox was still ok.

So, I went on installing the RGH again, but after wiring up, the Xbox won't just glitch at all. No blinking green light. I checked everything but found no visible fault.
I had to remove everything again, cleaned all solder points , flashed the original dump back for the second time. But this time it shows E79 after firing up.

I formatted the 4GB nand and wrote the original dump back for a few times , but every time, it still E79

What could be the problem? Please help.

What are you using to write the nand? Any bad block? E79 means that something in the nand is faulty

 

[wmb88]

thanks for reply. the nand dump is fine becuase it worked fine first time when wrote it back for testing.

i have removed everything now and all solder points cleaned. i can post the current image of the board if that helps.

 

[john mathews]

South bridge

 

[Nintendo]

thanks for reply. the nand dump is fine becuase it worked fine first time when wrote it back for testing.

i have removed everything now and all solder points cleaned. i can post the current image of the board if that helps.

Yeah, pics will help. but what are you using to write the nand? Are you using Jrunner? Becuse if you are not using a JRP nor a Nand-X or the 4GB R/W kit I highly doubt you flashed the correct Ecc, because CR4XL uses a different Ecc aka Xell.

By the way, you have Trinity or a Corona V2/V4/V6? you said 4GB, but didn't specify.

 

[playingmax]

try writing ur nand again.

 

[wmb88]

As the title stated, it's a Xbox360 E , so it'll be a Corona V3? being a 4GB nand with Samsung RAMs. I have flashed the original nand dump many times and formatted the nand many times. Always E79
attached is the photo of the motherboard.

as John Mathews said, it might be the south bridge problem I think. If I have to replace it, are south bridges from other Corona motherboards the same?

Also, sorry, I can't upload photos, it won't let me do. I'm using IE11 on Win7

 

[nofeloniesyet]

As the title stated, it's a Xbox360 E , so it'll be a Corona V3? being a 4GB nand with Samsung RAMs. I have flashed the original nand dump many times and formatted the nand many times. Always E79
attached is the photo of the motherboard.

as John Mathews said, it might be the south bridge problem I think. If I have to replace it, are south bridges from other Corona motherboards the same?

Also, sorry, I can't upload photos, it won't let me do. I'm using IE11 on Win7

yes sb on all coronas are same.also corona sb has its own array,so only a corona sb will work.im not convinced its sb.

 

[Nintendo]

yes sb on all coronas are same.also corona sb has its own array,so only a corona sb will work.im not convinced its sb.

The last time I got an E79 was reparing a DemoN install where some nand resistors where missing, so I bet it's because of your nand, maybe converting it to 16MB would bring it back to life?

 

[nofeloniesyet]

The last time I got an E79 was reparing a DemoN install where some nand resistors where missing, so I bet it's because of your nand, maybe converting it to 16MB would bring it back to life?

kind of what i was thinking also.this could be proved either way by simply writing a dif coronas 4gb nand dump to it,if the error dont change,thats most likley the issue.

 

[wmb88]

i think in my case , something is definitely damaged.

the xbox worked fine when i flashed the dump back first time to test. then i went on with installing the cr3 again. after that, all i get is no glitching, or e79 all the time with original dump flashed back.

i remember a few months ago, i had a xbox360e with e79 to repair. it worked right after i formatted the nand and reflash again.

this time things are not so lucky. i have checked all resistors with multimeter around nand , tomorrow i will check those on the bottom side and see.

 

[Nintendo]

i think in my case , something is definitely damaged.

the xbox worked fine when i flashed the dump back first time to test. then i went on with installing the cr3 again. after that, all i get is no glitching, or e79 all the time with original dump flashed back.

i remember a few months ago, i had a xbox360e with e79 to repair. it worked right after i formatted the nand and reflash again.

this time things are not so lucky. i have checked all resistors with multimeter around nand , tomorrow i will check those on the bottom side and see.

So get a 16MB Nand from an old Xenon or a broken console and convert the nand, there are plenty of guides. Can you read the nand fine? If you press F2 in Jrunner it reads the Console type? In the console I mentioned before, I was "able" to write everything I wanted but if I tried to read, I just got badblocks and corrupt data.

 

[john mathews]

if he can r/w nand there nothing wrong with it, theres no need to replace it unless he cant write to it if its curropted

 

[nofeloniesyet]

if he can r/w nand there nothing wrong with it, theres no need to replace it unless he cant write to it if its curropted

not true in every case.ive seen ones that say xell wrote fine,but nothing changes when you boot,still stock.and most times itll read just fine.

 

[wmb88]

not true in every case.ive seen ones that say xell wrote fine,but nothing changes when you boot,still stock.and most times itll read just fine.

if I was going to convert the nand, what should I do to create the 16MB nand ? I have not glitched it yet.
I guess, after conversion, I write 16MB corona ecc, and hopefully it will boot to xell.
So I have the CPU key then I should be able to decrypt the original dump... I have never done that before. Can you give me a brief guide ? thanks

 

[Nintendo]

if I was going to convert the nand, what should I do to create the 16MB nand ? I have not glitched it yet.
I guess, after conversion, I write 16MB corona ecc, and hopefully it will boot to xell.
So I have the CPU key then I should be able to decrypt the original dump... I have never done that before. Can you give me a brief guide ? thanks

With the 16mb conversion We meant getting rid of the 4GB nand and installing a regular 16MB chip.

Wait, I was reading the OP, Have you formatted the nand on Windows? Like fat32???

 

[nofeloniesyet]

if I was going to convert the nand, what should I do to create the 16MB nand ? I have not glitched it yet.
I guess, after conversion, I write 16MB corona ecc, and hopefully it will boot to xell.
So I have the CPU key then I should be able to decrypt the original dump... I have never done that before. Can you give me a brief guide ? thanks

you dump the nand before you do anything! save the dumps,then convert to 16mb,then write ecc for that board to get cpu key,then ya can use that key to decrypt the old 4gb dumps and then build a 16mb nand from it when i say convert it to 16mb we mean removing 4gb bga nand and u have to move some resistors round and ofc add a 16mb nand chip,you can find guides for that on google search.

 

[wmb88]

With the 16mb conversion We meant getting rid of the 4GB nand and installing a regular 16MB chip.

Wait, I was reading the OP, Have you formatted the nand on Windows? Like fat32???

yes. formatted it in windows many times but still e79 after

 

[BrockThunderjam]

if he can r/w nand there nothing wrong with it, theres no need to replace it unless he cant write to it if its curropted

Absolutely false. I've had 4GB consoles boot just fine on retail but when trying RGH would freeze on the splash screen.