Need help with TX3 Mini with Rockchip 2338A, pins to short for mask mode?

[Shadownet]

Hi all,
Can anyone help with this strange new SoC which was advertised as having an Amlogic S905X2 but seems to have Rockchip 3228A?
It is no longer getting into flash mode on Batchtool 1.8 and unsure which pins I would need to short, not even sure where the nand is tbh.

Thanks for any assistance.

More Photos here:

https://ibb.co/RjZVCJg

https://ibb.co/tQkFj9V

https://ibb.co/ncXQXT6

https://ibb.co/cr0RsYy

https://ibb.co/6sxS9fH

https://ibb.co/B6KmWV8

https://ibb.co/7SfDF4X

https://ibb.co/305pWHJ

https://ibb.co/6PmgpF6

https://ibb.co/NTkVHHH

https://ibb.co/Ytfnyrg

https://ibb.co/9q6ggbV

https://ibb.co/t2T0X2g

[ViníciusBR]

I need help, how hard

See photos:

https://1drv.ms/f/s!Ahb9KTbQZ1HyiGosB7uq9Wufc8GD

[Shadownet]

Similar board? not sure what you mean by how hard?

[Shadownet]

So I think the eMMC is this 5KA98 / JY941 which has nand onboard. I tried shorting pins around the IC and the red led has briefly gone blue but cant seem to isolate the exact pins.

I looked for a pinout diagram online but not really sure what I am looking for exactly.

https://ibb.co/mT3wSQP

[phankhanh86]

I need help, how hard

See photos:

https://1drv.ms/f/s!Ahb9KTbQZ1HyiGosB7uq9Wufc8GD

easy to unbrick
near emmc have two hole.
connect 2 hole and plug usb A cable to pc and mainboard
sure pc has sound "ting"

[phankhanh86]

So I think the eMMC is this 5KA98 / JY941 which has nand onboard. I tried shorting pins around the IC and the red led has briefly gone blue but cant seem to isolate the exact pins.

I looked for a pinout diagram online but not really sure what I am looking for exactly.

https://ibb.co/mT3wSQP

can you note on mainboard i cant see point short
thank

[Shadownet]

For some reason I cant upload photos direct to this forum, so I have to add links instead.

The board model has label

TX3-R29-LP3-V1.0
HXW21051701-B
20210602

https://ibb.co/P5bsD7d

Thank you

[uppi1412]

Hello, did you find a way to unbrick this device? I have a similar board to yours and while trying to install Armbian on it, it stopped booting and only shows blue light.

[uppi1412]

We can talk on Telegram if you want, my Telegram id uppi1412

[uppi1412]

From what I read on the description, this board of mine has EMC, as MXQ_RK3229_EMCP_V4.0 is written on it, that's means :

There are however some unfortunate cases (expecially newer boards) where shorting the eMMC clock pin is difficult or impossibile, like eMMC or eMCP BGA chips with no exposed pins. In those cases pay double attention when burning something on the internal eMMC/eMCP and always test first the image from the sdcard to be sure it works before burning anything on eMMC/eMCP

That's from the https://forum.armbian.com/topic/1265...322x-tv-boxes/

[uppi1412]

More info about it on this https://forum.armbian.com/topic/1265...comment-124401

[freddy]

So I think the eMMC is this 5KA98 / JY941 which has nand onboard. I tried shorting pins around the IC and the red led has briefly gone blue but cant seem to isolate the exact pins.

I looked for a pinout diagram online but not really sure what I am looking for exactly.

https://ibb.co/mT3wSQP

You are correct that is Micron Nand

From Red to Blue is good sign ..
Even briefly...
Keep Trying points...

Sometimes can be simple Thing that is missed in Process
Close Batch Tool
Uninstall Driver Assist..
Then Reinstall Driver Assist
Open Batch Tool Load file

Repeat every time you test a different Rom

Here is observation From OP image posted 3rd down from top
Reads as /ncXQXT6..

To the Left of Vertical Sticker reads as TX3-R29-LP3-V1.0...
Approx 1. 5 cm are 2 copper circles/points on a Diagonal
Maybe bridge those...

Best is to leave this Thread and From Home
Move Down to Rockchip based TV-Players
Sub Forums

FreakTab Tools and Utility Collection thers are Stickys/THreads that will help with Unbrick

Then Sub Forum RK 3229

THere are Many Many Threads with your situation

Happy Testing

[Shadownet]

Thanks all, appreciate the ideas. I'll try to bridge some of those pads you've mentioned.

Do you know if there is any variation in the maskrom initial handshake process? I read most places that you have to have the physical reset switch depressed while also shorting the pins. Then with all that in place simultaneously insert the USB cable to give power to the circuit?

Is this standard procedure or do different SoC manufacturers have other procedure?

Cheers

[freddy]

Thanks all, appreciate the ideas. I'll try to bridge some of those pads you've mentioned.

Do you know if there is any variation in the maskrom initial handshake process? I read most places that you have to have the physical reset switch depressed while also shorting the pins. Then with all that in place simultaneously insert the USB cable to give power to the circuit?

Is this standard procedure or do different SoC manufacturers have other procedure?

Cheers

Hmmmmmmmmmmmm

You are confusing yourself with what you read ....
That is one method to Connect Box to Batch Tool
Minus the short Pins /Nand

It is next to impossible to physically attempt such a procedure
You dont have enough Hands....

Ha Ha ha

Unless you are Contortionist with the ability to use your Feet like Hands...

Tickling THe Nand Is Last Resort



You need to stay away from Maskrom Mode for Now

Go to Rockchip Basded Tv Players as Posted Above

Good Luck

Happy Testing

[Shadownet]

Haha thank goodness, it was starting to look like a 2 man job!