Leapster Explorer: How To Make a NAND Cartridge - Revision history

Peter Huewe: Added cat

2011-10-27T09:57:01Z

Added cat

Jrspruitt at 09:12, 23 July 2011

2011-07-23T09:12:41Z

Nirvous: /* Requirements */

2010-09-17T20:25:42Z

‎Requirements

Nirvous: /* Hardware Instructions */

2010-09-17T19:34:52Z

‎Hardware Instructions

Nirvous: /* Introduction */

2010-09-17T19:32:52Z

‎Introduction

Nirvous at 19:32, 17 September 2010

2010-09-17T19:32:20Z

Nirvous: Created page with "==Introduction== This tutorial documents the steps to follow in order to replace a Leapster Explorer cartridge's One-Time-Programmable memory chip with a rewritable NAND memory ..."

2010-09-17T18:50:59Z

Created page with "==Introduction== This tutorial documents the steps to follow in order to replace a Leapster Explorer cartridge's One-Time-Programmable memory chip with a rewritable NAND memory ..."

New page

==Introduction==

This tutorial documents the steps to follow in order to replace a Leapster Explorer cartridge's One-Time-Programmable memory chip with a rewritable NAND memory chip, create UBIFS partition/volume and mount the volume in Linux.

==Requirements==

Leapster Explorer game cartridge.

NAND chip - a 512MB chip was used for this tutorial (2 GB max)

Soldering equipment

'''Strongly recommended:'''
A microscope or similar high-powered magnifier.

==Hardware Instructions==

# Open the plastic casing, remove the PCB, and Desolder the OTP part from the PCB
# Clean the OTP pads on the PCB using solder wick
# Apply solder paste to the nand pads, and apply soldering iron on pads to melt solder; the surface tension will draw the solder onto the pads. Clean up excess.
# Place nand onto board on the soldered pads and align the dot with the upper left. (A dot of 'fun-tack' putty underneath the NAND is useful to help keep the part in place)
# Solder one corner pin on each side to tack the NAND down by melting the solder on the pad
# Melt the solder on the other pins to fully solder the nand in place
# Use a continuity checker DMM to verify good contact between the pads and NAND pins. (repair joints as necessary)
# Desolder R4 and R5 and resolder them as pullups on the alternate pads.

==Software Instructions==

Make sure CartManager is running
CartManager &

Insert the cart and format the Nand with ubi
ubiformat /dev/mtd10 -s 512

Attach the ubifs partition
ubiattach /dev/ubi_ctrl -m 10 -O 2048 -d 2

Create a ubifs volume
ubimkvol /dev/ubi2 -N Cartridge -s 490MiB

Mount the drive
mount -t ubifs ubi2:Cartridge /LF/Cart

← Older revision		Revision as of 09:57, 27 October 2011
Line 55:		Line 55:
	Mount the drive		Mount the drive
	mount -t ubifs ubi2:Cartridge /LF/Cart		mount -t ubifs ubi2:Cartridge /LF/Cart
		+
		+	[[Category:Leapster Explorer]]

@@ Line 1: / Line 1: @@
-==Introduction==
+== Summary ==
 This tutorial documents the steps to follow in order to replace a Leapster Explorer cartridge's One-Time-Programmable memory chip with a rewritable NAND memory chip, create a UBIFS partition/volume on the NAND, and mount the volume in Linux.
-==Requirements==
+== Hardware Requirements ==
 Leapster Explorer game cartridge.
@@ Line 17: / Line 17: @@
 *Open the cartridge's plastic casing, remove the PCB, and Desolder the OTP part from the PCB
-[http://imgur.com/dK2kj.jpg| Photo of cartridge before replacement of OTP.]
+[[File:LeapFrog_Cartridge_Stock.jpg|320px]]
 *Clean the OTP pads on the PCB using solder wick
-[http://imgur.com/305cJ.jpg| Photo of cartridge after removal of OTP.]
+[[File:LeapFrog_Cartridge_Desoldered.jpg|320px]]
 *Apply solder paste to the nand pads, and apply soldering iron on pads to melt solder; the surface tension will draw the solder onto the pads. Clean up excess.
@@ Line 31: / Line 31: @@
 * Melt the solder on the other pins to fully solder the nand in place
-[http://imgur.com/I7tL4.jpg  Photo of cartridge after installation of NAND.]
+[[File:LeapFrog_Cartridge_NAND_Replaced.jpg|320px]]
 * Use a continuity checker DMM to verify good contact between the pads and NAND pins. (repair joints as necessary)
 * Desolder R4 and R5 and resolder them as pullups on the alternate pads.
 ==Software Instructions==

@@ Line 17: / Line 17: @@
 ==Hardware Instructions==
-*Open the plastic casing, remove the PCB, and Desolder the OTP part from the PCB
+*Open the cartridge's plastic casing, remove the PCB, and Desolder the OTP part from the PCB
 [http://imgur.com/dK2kj.jpg| Photo of cartridge before replacement of OTP.]

@@ Line 9: / Line 9: @@
 NAND chip - a 512MB chip was used for this tutorial (2 GB max)
-Soldering equipment
+Soldering equipment (incl. solder paste and wick)
 '''Strongly recommended:'''
 A microscope or similar high-powered magnifier.
 ==Hardware Instructions==