PS3 PS3 Slim (CECH-2101A) unable to get time, even after CMOS replacement?

[sjrbs]

CECH-2101A on 4.93 CFW, knew the battery was dead(?) when I modded it but only bothered to replace it now. Attempting to get the time through the XMB gives me error 8001050F, same as it did before I replaced the battery. I bought the battery a week or two ago, so it's unlikely it died while I was putting it off--is there something else that could be giving me this error? How do I fix it?

Thanks in advance.

 

[manuki]

Take the CMOS battery out and measure its voltage with a multimeter first.
That will immediately tell you if it's actually good.

Also - did the battery work at all during those 1-2 weeks after you bought and installed it, or was the issue exactly the same from the start?

It's worth noting that there are cases of brand-new CMOS batteries being faulty or already discharged out of the box, so that wouldn't be unheard of.
If the voltage is fine, then we can start looking at whether the PS3 itself is failing to read the RTC circuit properly.

 

[sjrbs]

I can't open my PS3 at the moment, but I measured both the battery already inside when I received the console (100% dead) and the other battery that was packaged with the one currently inside the console (doing great, will test inside the console if the current one is dead as well). The battery did not work for the entirety of the time I have owned this console, and the new one was only installed the day I made the post.

In the event that the battery currently inside the console is fine, what should I do/expect?

 

[Berion]

Before you replace it, you should do sanity check to measure new battery if holds the nominal Volts. Without that, further diagnosis is pointless.

If it turn to be fine, then traces leading from could be not.