PSP homebrew plugin: fx_powerspoof, bypass battery percentage check

Posted Jan 25, 2009 at 10:05AM by QJ Staff Listed in: Hacks & Exploits, Homebrew Applications Tags: NoEffex, Sony
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Sticky situation: you got a game update and installation requires your battery to be somewhere around 75%. You can't find your charger or USB cable, so now what do you do? Enter NoEffex's fx_powerspoof plugin.

What it does is it tricks your system into thinking that your battery's got 100% juice, thus allowing you to bypass that pesky little requirement check! Demo video after NoEffex's release notes below:

The main use for this is those games that install updates sony-style, and require 75% or so battery, when that is totally unnecessary and a waste of your time, because if you run out of battery - oh well, start over, nothing harmed, as it does not flash a thing.


How NOT to use: During flashing(specifically flash0) things that require 75% battery. Not a bright idea. You can, but if you screw up, not my problem .


How it works:


Patches

  1. scePowerGetBatteryPercent to always return 100 via jr ra->addiu $v0, $zero, 100
  2. scePowerIsLowBattery to always return 0 via jr ra->addu $v0, $zero, $zero
  3. scePowerIsBatteryExist to always return 1 via jr ra->addiu $v0, $zero, 0x0001

THEN Unloads itself, so it won't make your kernel memory all lame and sliced up




Though fx_powerspoof doesn't do anything to harm your battery, there could be a problem if you use it while working on flash0 (see "How NOT to use" note).

Download: fx_powerspoof
Visit: QJ.NET PSP development forums



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Comments

by dragon92 - 2009-01-25 10:58:58
...

...I don't know why,but I think that Custom Firmware updates had the option to bypass that...And it is the same as with the "low-battery flashing diode"plugin,when the power diode is flashing by default when the battery is running dry...
by misthero - 2009-01-25 11:13:28
Unuseful Hombrew

To bypass the battery check just keep pressed L button when you start the update.
by LancerImpact - 2009-01-25 16:06:34
No.

That cannot be done in official Sony updates ( which I know you wont be using), but it also cant be done to bypasses the download of patches on games. Online games such as ftb2.
by 1337-Scruffy - 2009-01-25 20:39:01
??!

why did u write on ur screen at the end?!?! and yea this is GOOD thanks...but i got the newest patch lol....NEXT TIME.....or i can delete it xD
by alias_neo - 2009-01-26 01:33:29
Erm...

Normally I would say this is a very bad idea, but since it's practically impossible to permabrick your PSP these days, i'll stick to indifference.
by Omega-Weapon - 2009-01-26 02:31:10
No use?

If you're updating through a SONY Official firmware, you wouldn't be able to run this, right? So what's the point? All of Dark_AleX's updates can skip the battery percent by holding L+Triangle. So I see no point in this at all. Anyone care to explain?
by tinman - 2009-01-26 03:26:37
Not useless...

"+NoEffex"I somehow misplaced my battery and needed to install a game patch, so I cooked this up, and installed some patch without a battery, that normally requires like 75% battery, which is 100% pointless. It even unloads itself after patching the functions." It's for game update patches not firmware updates. This doesn't work for any kind of firmware updating.
by du.der.icio.us - 2009-01-26 04:14:47
I still wouldn't

Even if this did the job ... The correct thing to do is ... Be patient. Even if it took 2 weeks to buy a new charger. What's the point. It's not like you're going to save someone's life. You're not George Castanza. BOSCO
by JaXeRiR - 2009-01-26 07:01:12
No.

This is meant for those pesky Sony online game updates, which require you to have at least 75% of battery before they start the installation. The ones that install when you go to the online mode of SOCOM FTB2 etc.

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