Using Charger when running at 333mhz issues

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What steps will reproduce the problem?
Note: These problems can generally be solved by having a battery inside and 
limiting the XMB/Game speed at 222mhz.

1. Set XMB/Game speed as 333mhz.
2. Turn off PSP, take out battery, plug in charger.

3. Try turning on the PSP. Power switch glows green, memory stick flashes, 
screen still blank, green light fades (off).
4. Conclusion: PSP will not turn on by charger alone (without battery) when it 
was at 333mhz. Sometimes this occurs even if you set at 222mhz before hand. I 
think it's because sometimes the PSP temporarily becomes 333mhz at bootup.

3. Start a game from XMB
4. Memory stick flashes, screen still blank, green light fades (off)
5. Conclusion: PSP will not start game by charger alone. This also occurs if 
you set at 222mhz before hand. I think it's because the PSP temporarily becomes 
333mhz when starting the game.

3. This time, leave the battery in, and start the game.
4. When the game has loaded, the PSP stops charging and maintains its charge 
level. If you take out the battery it dies in about 10 seconds. For e.g, God 
Eater Burst. PSP battery at 20%. Start the game at 333mhz with the battery in. 
Load your game. Plug in charger. The power light alternates between orange and 
green and maintains at 20%, whereas it should be charging. If you plug out the 
battery, the PSP dies in say 10 sec. Sure this prevents charging and playing at 
the same time which can be harmful to batteries but also screws people who want 
to conserve battery by running off the charger only, who don't know all you 
have to do is set the speed at 222mhz beforehand.
5. Conclusion: PSP will not charge nor run off the charger when at 333mhz in a 
game.

What is the expected output? What do you see instead?
I believe these will fix the problems:
Limit the bootup to 222mhz.
Limit the starting of game to 222mhz.
Limit the speed of game to 222mhz when running solely on charger.
What's to learn from this if the above cannot be done?
-Keep your battery safe. Without it, your PSP is gone and possibly won't boot 
up unless you find another battery. Maybe you could jolt it back to life 
(literally) but that's kinda dangerous...
-If you want to use the PSP with the charger only to preserve your battery 
life, only take out your battery if you're on the XMB OR in a game that's 
running at 222mhz.
Hope this helps people who run into the same issues.

What version of the product are you using? On what operating system?
6.20 PROB10 Fix-1 on a 3000.

Please provide any additional information below.
I have tried turning off all plugins, isocache, memory stick speedup, disable 
hide CFW files from game. They're not the cause, seems to be 333mhz's problem. 
Yes my battery's genuine, I bought my PSP3000 default bundle from an official 
Sony store whose's location is on my region's Sony site.
IF it is an isolated case (i.e you're unable to replicate), do tell, I might 
buy another battery (if it still turns out NOT to be the battery after that hey 
I could use it lol). But I ran my PSP through a PSP homebrew program and it 
said my PSP battery is at 985/1200 mAH which means its still moderately healthy 
and is probably not the culprit.

Original issue reported on code.google.com by morrn...@gmail.com on 5 Nov 2011 at 1:36

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Works fine for me without the battery without changing anything. I have psp 
3000 with 6.39 Pro B10

Original comment by tsbegh...@gmail.com on 5 Nov 2011 at 9:59

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It seams to me that your using an USB charger or some kind of low efficiency 
charger.
This kind of problems occur for me ONLY while i'm charging the PSP from a USB 
split Data/Charger cable. The charger I have has 5V DC 1500mA output. Check 
your charger and evethually buy yourself a more efficient one.

Original comment by piotrekhenry on 6 Nov 2011 at 12:51

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Thanks for the replies,

RE: Usb charging
I don't have a USB split data/charger cable.
->Would I get one to charge my PSP? 
No, the charge is pathetic compared to a charger.
->Would I get one to use the PSP with the USB charger only 
to preserve your battery life?
No, the USB mini B "dock" on the top of the PSP isn't secure. 
A sudden jerk might cut the power.

On a related note, charging/running off the USB cable (plug in USB, take ot 
battery) has the same problems as the charger e.g you can only take out the 
battery if game is running at 222mhz.

RE: Charger
I have 2 chargers in possession: 
One is 1500mAH which is original. 
The other is 2000 mAH which is from when I had my 1000, 
and may or may NOT be original.
Both give the issues I've stated in the report.
I don't know how to check the chargers:
Do I need a voltmeter or something?
I don't know of any plugins that display the voltage when running solely off 
the charger (e.g PRXshot only displays battery voltage), do you happen to know 
of any?
If it helps my battery voltage is 3.66v which is what is stated on the battery 
thus it is healthy...

What does this mean?
Case 1: It's because there is weak charge coming out from the USB cable AND 
both chargers. Your charger is faulty!
Result: I'll have to hunt really hard for a 3000 charger/order online since the 
Sony stores are out of stock and the 2nd hand shops in my region don't carry 
them. Sheesh, hope it's not the case. Anyone know of any plugins/homebrew which 
display charge input and voltage input when using the charger only?
Case 2: It's a 333mhz problem
Result: I already know that I have to restrict to 222mhz, but would suck if 
someone eles encounters the problems and doesn't know what to do. If it is a 
bug, a fix would be ideal.

Again, thanks for the inputs..

Original comment by morrn...@gmail.com on 6 Nov 2011 at 7:00

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It doesn't happen on me i did what you said = NO ISSUES AT ALL

I'm on 6.20 PRO-B10 PSP 2K

Original comment by chronosx...@gmail.com on 7 Nov 2011 at 4:41

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Just tried it again:
PSP 3004 03G with 6.20 PRO B-10.fix 1 with permanent patch.
Took out the battery.
Plugged my 5V 1500mA DC charger
Set the Game Clock to 333/166
Started Metal Gear Solid Peace Walker
Everything was normal.

This is NOT a software issue.

If you want to test this try runing for example Kingdom Hearts Birth By Sleep 
on ORIGINAL firmware (You can set the clock in game for 333/166) or any other 
game you can run on original firmware with 333/166 game clock and test if 
you'll have this problem too. If your PSP won't run on the charger only while 
your runing original firmware with a game on 333/166 then it's a problem with 
your charging efficiency - otherwise it MIGHT be an issue related to the CFW.

PS: A CHARGER doesent have an output of mAh ( mili ampere-hour )but in mA (mili 
amphers) since Ah is a unit of electric charge, not electric curent. Please 
obtain at least such minimal knowledge by at least reading wiki 
http://en.wikipedia.org/wiki/Ampere-hour.

You dont need a voltmetter. Every charger has a written specification on it.
Polish (I gues European as well) standard original charger is a 100-240V 0.2A 
AC to 5V 1500mA DC converter.

5V*1500mA=7,5W
If your chargers output is 3,66V like the voltage of the batery you wrote and 
1500mA then:
3.66V*1500mA=5,49W wich is 26,8% less efficient than the original charger I got 
with my PSP.

Original comment by piotrekhenry on 7 Nov 2011 at 3:56

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I don't trust the written specification on the chargers 
because I believe they may be fake, 
hence why I asked if there's a way to "officially" test.

Anyways...
Based on the evidence presented, I conclude that my 3000 charger 
(which I believe is genuine, it matches this pic EXACTLY 
http://www.yobogroup.com/main/img/psp3-3391.jpg) is failing me. It's probably a 
frayed wire or something that leads to a pathetic charge. Time to find a new 
charger.

Thanks guys.

Matter closed.

Original comment by morrn...@gmail.com on 7 Nov 2011 at 4:39

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"Matter closed" <-- that

Original comment by devnonam...@gmail.com on 23 Jun 2012 at 1:52

• Changed state: Done

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Original comment by piotrekhenry on 23 Jan 2015 at 4:18

• Changed state: Verified