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From: The Natural Philosopher <tnp@invalid.invalid>
Newsgroups: comp.sys.raspberry-pi
Subject: Re: My question isn't about the fault, its about how to find it.
Date: Sat, 14 Sep 2024 19:32:41 +0100
Organization: A little, after lunch
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On 14/09/2024 16:38, Chris Elvidge wrote:
> On 14/09/2024 at 15:37, The Natural Philosopher wrote:
>> On 14/09/2024 11:33, The Natural Philosopher wrote:
>>> On 14/09/2024 08:12, Pancho wrote:
>>
>>
>>> Prolly easier to get an HDMI and USB adapter and pop a monitor and 
>>> keyboard on it.
>>> I spent hours yesterday googling for PI ZERO 2 W WIFI DISCONNECTS and 
>>> everybody has the same problem. Must be 1000 posts out there. It 
>>> seems that the 2W is basically a piece of shit. People try SD cards 
>>> that work perfectly in the Zero W, but don't work in the 2W.
>>>
>>> I tried every methodology suggested, and its still doing it.
>>>
>>> I am tempted to buy the old version, two  of which have been 
>>> faultlessly connected to the same wifi point for several years....
>>>
>>> Unfortunately I soldered a header block to this one so I can't return 
>>> it. Bin job probably.
>>>
>>>
>> Well another day of configgling
>>
>> Tried to make it talk to a different wifi point. Bricked it. 
>> Reinstalled OS lite and started setting up. (again!)
>>
>> The Pi ZERO 2W apparently uses a different wifi chip - SYMANTEC 
>> SYN43436, not the old BROADCOMM BCM43438
> 
> Where did you get this info?
> On mine module cfg80211 is loaded by brcmfmac (broadcom?).
> 
Apparently there are two possible chips. Broadcomm and symantec
I THINK I have the broadcomm

dmesg | grep brcmfmac
[   12.461334] brcmfmac: F1 signature read @0x18000000=0x1541a9a6
[   12.467893] brcmfmac: brcmf_fw_alloc_request: using 
brcm/brcmfmac43430-sdio for chip BCM43430/1
[   12.468806] usbcore: registered new interface driver brcmfmac
[   12.731339] brcmfmac: brcmf_c_process_txcap_blob: no txcap_blob 
available (err=-2)
[   12.732079] brcmfmac: brcmf_c_preinit_dcmds: Firmware: * BCM43430/1* 
wl0: Jun 14 2023 07:27:45 version 7.45.96.s1 (gf031a129) FWID 
01-70bd2af7 es7
[   15.888471] brcmfmac: brcmf_cfg80211_set_power_mgmt: power save enabled

That's exactly  the same as my 'working perfectly' Pi Zero 1W...

So its probably not that.



> Model       : Raspberry Pi Zero 2 W Rev 1.0
> Revision    : 902120
> Raspberry Pi OS (bookworm, full); kernel  6.6.47+rpt-rpi-v8
> 
> No problems with wifi over the last few weeks.
> Wavlink M30HG4.V5030.191116
> 
> Now bluetooth, there's a whole nother story!!
> 
Disabled that baby straight off.

Its very strange.

Its 64 bit instead of 32 bit.

But that's all that seems radically different hardware wise.

Again some rumours are that the zero 2 being power hungry may be loading 
the PSU more.

But in the middle of the night? Doing NOTHING?




-- 
Climate Change: Socialism wearing a lab coat.