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Yesterday I bought myself a PSP to relive some of my childhood memories, run custom firmware on it and so on. Unfortunately however, the battery on this one is seriously puffed up, and I need one in order to update the firmware from 5.50 CFW (the seller actually modded it too!) to 6.61 OFW (to then install CFW from there again).
I figured that I might as well have a kick at disassembling the battery for good measure, to take out its controller and power it from my lab bench power supply. I set it to 3.70V, double-checked the connections.. nothing. I raised the voltage to 4V, still nothing.
There is absolutely nothing wrong with the controller from looking at it. The magic smoke is still in there, all I did was removing the housing and snipping off the battery. I measured the cell voltage and it was only some residues at 0.01V. Might be internally shorted or something, normally even dead cells settle back at 3.7V unless you keep them shorted externally.
After seeing this so many times now with controllers, I'm starting to get a feeling that manufacturers actually program these things to look at the battery voltage, and when it reaches 0V, to just make the controller kill itself. Doesn't matter if the controller's electronics are still good, just fucking kill it.
If true, that is very, VERY nasty. It would also explain why batteries in laptops especially all have different form factors, despite having used regular 18650's internally for a very long time. It would explain why they're built like tanks. It would explain why manufacturers really don't want people in there. Yes there are safety issues and you're literally diffusing a bomb. Since recently we've also got space optimization.. anything for half a mm of thickness, amirite? But doing it this way is fucking disgusting. There is absolutely no reason for the controller to kill itself when the cell dies. Yet it seems like it does.
PS: I've posted the original picture on https://ghnou.su/pics/... now if you're interested. I noticed in my previous rant that devRant really squishes these down.
12 -
FR rant
Warning : Do not use devRant in the lavatory, especially the shower.
So i was browsing devRant in the lavatory like a normal human being (?) and saw a post super funny, laughed so hard, and dropped the phone. Now the bottom left of my phone doesnt work.
So i was browsing devRant in the lavatory like a normal human being (?), went inside a shower without noticing that i went into the shower, turned on the faucet without noticing that i turned in the faucet, and i was attacked by fierce water with the pressure level 10 (10 is the max). Then i found out my favorite snoopy t shirt, which i wore just before coming into the lavatory, is wet. Completely. And water is dripping from my phone's charging port, but works flawlessly for 5 days.
So i was browsing devRant in the lavatory like a normal human being (?), writing this rant, and just because i feel tired, i moved a little bit and got my bottoms all wet which feels so bad...
So the final thing i would like to say is a feature request. Please check whether the user is in the shower or not. Lavatory is fine. But shower is not. You can use thr data retrieved from thw humidity sensor.
List of phones with humidity sensor : https://phonegg.com/list/...
Android sensor reference docs : https://developer.android.com/guide...9 -
Update on ConsoleWidgets project:
Unit system is done, and much improved from the last project. Included a new class which mimics the CSS "calc()" - allowing you to mix pixel (Or, in console terms, cell) values and percentage values. The screenshot shows 100% - 10c
Color system in functional! In the screenshot you see the aforementioned widget colored devRant light purple! Not to mention retaining the original transparent color for the window background.
Next up: style class (maybe) and layout management classes (for sure!)
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