Locate Jumper or SuzyQable seller (UK)

Support
1

Hello,

I am attempting to disable WP on an Asus CX3402 (non-flip, non-touchscreen) Chromebook Plus.

My research has initially taken me to a website called Cool Star which details the procedure to install Windows 11; my research into the first step - disabling Write Protection - led me to the MrChromebox website.

I have identified my model number on both the Cool Star and Mr Chrome Box websites and the instructions for disabling WP are:

Locate the Jumper CR50 and bridge.

I can apparently do this with a paperclip, or a small solder joint.

What I’m missing is:

The actual location of this jumper on the motherboard - google unfortunately has a lot of acer and hp motherboards to show me, but none for this Asus model. During those searches, the notion of a SuzyQ Cable (or sometimes spelled SuzyQable) is mentioned often in old Reddit posts and even some on here.

I have checked Ebay, Amazon and a website called SparkFun for these cables and they are apparently hen’s teeth. It’s also only a maybe that this cable even works on this model.

My question then is:

Does anyone have photographs of the Asus CX3402 motherboard, or even a few lines of text telling me where on the board to find it or what it looks like and if it is near anything significant.

Or

Does anyone know where I, in the UK, can buy this cable and if it will work on my model?

Thanks.

2

For the suzy q cable, this is a great option: GSC Debug Board (aka "Chromebook Debug Cable" / "SuzyQ", for Cr50 / Ti50) | eBay
It’s made by a user here and many people have used it, and it’s very reasonably priced

For the location of the jumper, can you tell us the board name (you can find it at the bottom of the screen in recovery mode) and a picture would be helpful.

3

Hi, thanks for your response.

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The model is apparently a MARASOV-UERT, it doesn’t look much like motherboard model codes I’ve seen before but there’s nothing else on the screen that looks like it.

Unfortunately no pictures of the board yet as I’ve not yet opened the device.

4

Hello again, I have taken some photos of the board, with a close-up of what I think might be the jumper.

If that is the jumper then that’s excellent for me as even with my ham hands and poor quality soldering iron, bridging it should present no significant difficulties.

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(more to follow, as a “new user” I am only permitted one photo per posting)

Thanks for looking

5

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6

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This is the image containing the possible WP jumper. Two mounds of solder separated by around 0.5 centimetres. It seems quite obvious but I’d enjoy getting confirmation before I start the “work” :stuck_out_tongue:

7

the cable works on every ChromeOS device from 2017 on.

there’s a link on my FAQ page

8

that’s almost certainly not it

9

Where does it say your model needs a jumper?

10

I have the same MARASOV Board and I am wondering if you figured out how disable the write protect on yours?
I think I need a Suzy-Q cable to change my CR50 via CCD.

11

I ended up getting a SuzyQ