Different revisions of WiiM Amp

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dustin

Member
Joined
Nov 15, 2024
Messages
6
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.
 
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