Different revisions of WiiM Amp

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dustin

Member
Joined
Nov 15, 2024
Messages
15
I have a few WiiM Amps and noticed that there are some differences between them. Here are a few of the differences when I run getStatusEx:

Code: 
    "firmware": "Linkplay.5.0.704664",
    "project": "WiiM_AMP",
    "Release": "20250115",
    "PCB_version": "6",
    "wmrm_version": "4.3",
    "languages": "0x11ec",
    "silence_ota_flag": "0",
That one shows firmware is up to date in the app at version 5.0.704664

Code: 
    "firmware": "Linkplay.5.2.636939",
    "project": "WiiM_Amp_4layer",
    "Release": "20241205",
    "PCB_version": "7",
    "wmrm_version": "4.2",
    "languages": "0x1ec",
    "silence_ota_flag": "1",
This one shows firmware is up to date in the app at version 5.0.636939, over a month behind the other one. The firmware version in the app and what's returned by the API don't agree. This one also has a more ventilated bottom cover like the WiiM Amp Pro. They both came with the plastic knobs on the speaker terminals.
 
That's weirdly cool. I had not seen PCB_version 6 so far, let alone PCB_version 7! Looks like WiiM are still improving the WiiM Amp (while one could say that the Amp Pro didn't receive much attention lately). The "project" name WiiM_Amp_4layer" could hint to a totally different PCB (or just to a random change of a string ;)).

The firmware version being reported as "5.2.xxxxxx" by the API is definitely strange. 5.2 would normally indicate the Ultra or the Amp Pro. And the "Release" date is actually identical to the release date of the latest official Amp Pro firmware.

So, while I have absolutely nothing helpful to offer I thank you for these entertaining insights. There must be more users with new WiiM Amps.
 
"firmware": "Linkplay.5.0.704664",
"project": "WiiM_AMP",
"Release": "20250115",
"PCB_version": "4",
"wmrm_version": "4.3",

Interesting; my two-month-old Amp has the above; old PCB ?
 
dustin said:
I have a few WiiM Amps and noticed that there are some differences between them. Here are a few of the differences when I run getStatusEx:

Code: 
    "firmware": "Linkplay.5.0.704664",
    "project": "WiiM_AMP",
    "Release": "20250115",
    "PCB_version": "6",
    "wmrm_version": "4.3",
    "languages": "0x11ec",
    "silence_ota_flag": "0",
That one shows firmware is up to date in the app at version 5.0.704664

Code: 
    "firmware": "Linkplay.5.2.636939",
    "project": "WiiM_Amp_4layer",
    "Release": "20241205",
    "PCB_version": "7",
    "wmrm_version": "4.2",
    "languages": "0x1ec",
    "silence_ota_flag": "1",
This one shows firmware is up to date in the app at version 5.0.636939, over a month behind the other one. The firmware version in the app and what's returned by the API don't agree. This one also has a more ventilated bottom cover like the WiiM Amp Pro. They both came with the plastic knobs on the speaker terminals.
Click to expand...
Is the firmware actually installed on the "WiiM_Amp_4layer" device 5.0.704664?
 
slartibartfast said:
Looks like a WiiM Amp Pro to me based on firmware.
Click to expand...
No, not if ...
dustin said:
This one shows firmware is up to date in the app at version 5.0.636939, ...
Click to expand...

Different firmware version displayed in WHA and using the API call is as strange as it gets already.

cdmackay said:
"firmware": "Linkplay.5.0.704664",
"project": "WiiM_AMP",
"Release": "20250115",
"PCB_version": "4",
"wmrm_version": "4.3",

Interesting; my two-month-old Amp has the above; old PCB ?
Click to expand...
Everything from PCB_version 4 on is usually considered trouble free. Some (or some more, we don't know for sure) version 1 and version 2 units suffered from problems like coil whining and thermal problems. There has never been a report of a PCB_version 3 in the wild.
 
Hey, just joining the thread as I bought my first Wiim Amp and set it up last Saturday 15th and it was immediately updated to version 5.0.709965 (build date 20250306) which I find odd since it’s not in the official releases and it hasn’t gotten the latest 5.0.711031 FW yet.

Another odd thing is my “FW Release Version” key on getStatusEx is blank, but my “firmware" is listed as Linkplay.5.2.709965 which sounds like an Amp Pro version to me.

Mine also has PCB rev 7, the vented bottom panel like the Pro and the gold plated plastic covered binding posts.

Attaching a screenshot for reference, already opened a ticket but haven’t received an answer yet and I’m curious how I’m running an unlisted firmware and when should I expect to receive the latest one.
 

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