mirror of
https://github.com/ghidraninja/game-and-watch-backup.git
synced 2025-12-16 07:15:56 +01:00
7d99781f90
It should not be needed in normal cases, but it doesn't hurt to do. It is needed in some cases, when the external flash has been corrupted.
94 lines
2.9 KiB
Bash
Executable File
94 lines
2.9 KiB
Bash
Executable File
#!/bin/bash
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set -e
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source config.sh $@
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if test -f backups/internal_flash_backup_${TARGET}.bin; then
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echo "Already have a backup in backups/internal_flash_backup_${TARGET}.bin, refusing to overwrite."
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exit 1
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fi
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if ! dd if=backups/flash_backup_${TARGET}.bin of=backups/flash_backup_checksummed_${TARGET}.bin bs=16 skip=${SPIFLASH_SKIP_16} count=${SPIFLASH_COUNT_16} >/dev/null 2>&1; then
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echo "Failed to access flash_backup_${TARGET}.bin"
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echo "Please run ./2_backup_flash.sh again"
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exit 1
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fi
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if ! shasum --check shasums/flash_backup_checksummed_${TARGET}.bin.sha1 >/dev/null 2>&1; then
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echo "*** External flash backup does not verify correctly ***"
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echo "Please run ./2_backup_flash.sh again"
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rm backups/flash_backup_checksummed.bin
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exit 1
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fi
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echo "Validating ITCM dump..."
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if ! shasum --check shasums/itcm_backup_${TARGET}.bin.sha1 >/dev/null 2>&1; then
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echo "*** ITCM dump does not verify correctly ***"
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echo "Please run ./2_backup_flash.sh again"
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exit 1
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fi
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rm -f backups/flash_backup_checksummed_${TARGET}.bin
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echo "This step will overwrite the contents of the SPI flash chip that we backed up in step 2."
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echo "It will be restored in step 5. Continue? (y/N)"
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read -n 1 -r
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if [[ ! $REPLY =~ ^[Yy]$ ]]
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then
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echo "Aborted."
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exit 1
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fi
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echo "Generating encrypted flash image from backed up data..."
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if ! python3 python/tcm_encrypt.py \
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backups/flash_backup_${TARGET}.bin \
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${FLASH_OFFSET} \
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backups/itcm_backup_${TARGET}.bin \
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payload/payload.bin \
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new_flash_image.bin; then
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echo "Failed to build encrypted flash image."
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exit 1
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fi
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echo "Programming payload to SPI flash..."
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if ! ${OPENOCD} -f "openocd/target_${TARGET}.cfg" -f "openocd/interface_${ADAPTER}.cfg" \
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-c "init;" \
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-c "halt;" \
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-c "program new_flash_image.bin 0x90000000 verify;" \
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-c "exit;" >>logs/3_openocd.log 2>&1; then
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echo "Writing payload to SPI flash failed. Check debug connection and try again."
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exit 1
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fi
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echo "Flash successfully programmed. Now do the following procedure:"
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echo "- Disconnect power from the device"
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echo "- Power it again"
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echo "- Press and hold the power button on the device"
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echo "- The LCD should show a blue screen"
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echo "- If it's not blue, you can try pressing the Time button on the device"
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echo "- Press return (while still holding the power button)!"
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read -n 1
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echo "Dumping internal flash..."
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if ! ${OPENOCD} -f "openocd/interface_${ADAPTER}.cfg" \
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-c "init;" \
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-c "halt;" \
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-c "dump_image backups/internal_flash_backup_${TARGET}.bin 0x24000000 131072" \
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-c "exit;" >>logs/3_openocd.log 2>&1; then
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echo "Dumping internal flash failed."
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exit 1
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fi
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echo "Verifying internal flash backup..."
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if ! shasum --check shasums/internal_flash_backup_${TARGET}.bin.sha1 >/dev/null 2>&1; then
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echo "The backup of the internal flash failed. Please try again."
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exit 1
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fi
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rm -f new_flash_image.bin
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echo "Device backed up successfully"
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