marți, 13 iulie 2010
Pandora's Battery: The Hardmod Method PSP
- A PSP battery to become a Pandora's battery. Will not work normally afterwards, so a spare is recommended
- Memory Stick larger than 64MB
- Some sort of wedge that isn't metal to get the battery open (like a guitar pick)
- Some sort of knife to cut a very small wire
- Soldering iron
- Tape or glue
Instructions:
BUYING A BATTERY - Recommended
Understandably you may not want to bother with making a Pandora's battery (below) If so, then you can purchase a Pandora's Battery from DealExtreme for US$6.32 and it should ship pretty much anywhere in the world.
Check it out -- HERE
If you have bought a battery, continue to Making the Magic Memory Stick
If you don't want to spend any cash (understandably), look below on how to make a battery.
MAKING A BATTERY
The battery that is guaranteed to work for the Pandora process is the standard Sony battery. The fat batteries look like this (the Slim ones are similar), and I recommend using one over cheaper alternatives.
1) The first thing you'll need to do is open up the battery. You can do this with something sharp that can wedge around the outside, such as a guitar pick. Do not use something metal or it might short out the insides
2a) Next, you need to locate a certain chip. The chip has the model number S93C56 printed on it, or IC04 printed next to the chip on the board. We are going to need to desolder pin 5 and lift it off of the board. You can find the chip in it's standard position below, and the pin you need to desolder is highlighted
2b) Slim batteries also have this chip, but it is located in a different position, and the method to lift pin 5 is different.
3) If you are not confident in your soldering skills, have a less than steady hand or have a larger-than-optimal sized tip, please desolder the cell pack from the battery first. If you make contact between pins 5 and 6 then you will short ground to +3.6VDC! Not good! When desoldering the cell, only keep the iron on long enough to melt the solder. If you can, use a higher wattage iron so that the tip will be hotter, but you won't transfer as much heat to the cell pack. Remember that heat + Li-Ion battery = large explosion, so if this is your first solder job maybe you should try something easier first
4a) Now is actually desoldering the pin. There are a few ways you could do this, but I think my method is the best because its less likely to damage components near by. Use an Xacto knife with a sharp tip and try to put it underneath the pin. Get somebody to hold a soldering iron (WITH A VERY FINE CONICAL TIP!) on the pin. When the solder melts you can pop the pin up with the knife. Be sure not to hold the iron on the board too long to avoid the lithium battery from getting too hot and exploding.
4b) In the picture above of the Slim battery you will notice two circles. You could follow the method above if you like and cut the pin in the red circle, but there is an easier method. Just cut the trace in the blue circle with a knife and it will have the same effect.
5) Finally, you'll need to close up the battery case. You can use glue or tape to do this. If you desoldered the cell pack it is recommended that you resolder it.
6) You now have a working Pandora's battery. Continue to Making the Magic Memory Stick for the next step of the Pandora process
How does the Pandora's battery work?
The pin that we just lifted was actually the ground pin of the EEPROM. Removing this pin effectively shuts off the EEPROM. When the microcontroller inside the battery tries to read the EEPROM, it will think the EEPROM contains all 1s (in binary). This is because of the pull-up resistors on the data lines. So the microcontroller returns a serial number of 0xFFFFFFFF to the PSP, which then goes into service mode.
Note: The Pandora's battery will no longer function as a normal battery, and you will need to either plug in your AC charger or buy/find a new battery for playing games after the hack is complete.
Abonați-vă la:
Postare comentarii (Atom)
Niciun comentariu:
Trimiteți un comentariu