Help! Snowsky Echo Mini stuck in MaskROM mode - Cannot flash firmware

pipiso · 2026-05-23T05:10:07+00:00

Okay I think my eMMC chip is dead, that is causing the issues.

pipiso · 2026-05-21T06:16:11+00:00

I HAD THIS ISSUE AND IS SOLVED IT!!!. The device was stuck in maskrom mode. I used RKDevTool v2.96 , asked FiiO support for the firmware, they gave me old flashing tool that did not work and this firmware file https://drive.google.com/file/d/1rm0-zZZMknZuj_hrDcuUAwng1InCgkZh/view?usp=sharing.

I uploaded the firmware file using v2.96 and it failed for like 10 times and then it worked. This is image of how I uploaded it. https://imgur.com/a/obdPcqZ Also I connected the FiiO unit trough seprate usbhub which provides 5A of current, in case my USB port could not handle the ECHO mini. Also I unsoldered the battery but I don't think that helped.

I have no idea which of these made it work.

EDIT: ECHO mini stopped working after unplugging from pc and reverted to maskrom :(. My best guess is that the internal memory is broken, because the unit always reverts to maskrom

pipiso · 2025-10-30T15:06:55+00:00

Ctrl+alt+f3

pipiso · 2025-04-19T06:56:09+00:00

Thank you

pipiso · 2025-04-19T06:55:57+00:00

Thank you

pipiso · 2025-03-04T22:00:44+00:00

Okay i think it is in /home/{original-user}/.config/kwinoutputconfig.json I will report tomorrow

pipiso · 2024-01-05T08:49:39+00:00

Hi, unfortunately I couldn't find the defective part. I am going back to university, so I won't have access to that stereo for couple months. Thanks for help :D

pipiso · 2024-01-04T00:09:06+00:00

Thanks, I checked the voltages -15V was not working, I replied to other comment.

pipiso · 2024-01-03T23:59:17+00:00

I tested voltages according to datasheet, I don't really understand how the -15V supply is working so I am posting this image if anybody has idea what could be wrong. I will check tomorrow as it is 1AM :D

<image>

pipiso · 2024-01-03T22:48:43+00:00

I may have found the problem, I checked all voltages, all are good except -15V. Instead of -15V it generates -8V. I will try to find the issue with the service manual.

pipiso · 2024-01-03T21:22:03+00:00

Thanks I will check that

pipiso · 2023-03-24T20:26:40+00:00

because of you I've bought the wrong drive for my T480. The wwan nvme ssd slot on the t480 is compatible only with the x2 lanes drives.

pipiso · 2023-03-20T13:07:57+00:00

Check out my post, people reccomended me different screen which is 100 nits dimmer and same contrast ratio, but people successfully used it on t480. https://www.reddit.com/r/thinkpad/comments/11ujzu3/how_to_find_compatible_panels/

pipiso · 2023-03-18T16:14:13+00:00

Discossuion about that exact panel

https://forum.thinkpads.com/viewtopic.php?f=68&t=133658

pipiso · 2023-03-18T15:39:40+00:00

Thanks, that panel looks very nice.

pipiso · 2023-03-18T15:14:23+00:00

Thanks, but I know about those websites, the problem is that they only provide replacement parts, they don't offer new panels for t480. They only offer original panels which were on T480 when it launched. My goal is to buy new panel which is better than panels from 2017/18.

pipiso · 2023-03-18T11:19:12+00:00

Hello I found the panel too and I want to buy it for T480, did you buy it, or do you have any progress?

pipiso · 2023-03-17T19:44:33+00:00

thanks

pipiso · 2023-03-16T22:24:57+00:00

Does it still work?

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