Likes: 
1) Bricked device MODEL, Firmware version, HWID.
2) Why and how the device got bricked.
3) Symptoms: what's wrong in your device?
4) Does your pc sees your device ?
5) List all the procedures you already tried to unbrick it and their results and errors messages obtained.
6) Do you have Garmin USB Drivers installed ? Garmin: USB Drivers Updates & Downloads
7) If you don't know HWID get it by Use program G7ToWin to retrieve your HWID
8) Write down if you already read or tried GarminCure3 tool - the new way to create cure firmwares for Garmin devices
How to unbrick a nüvi - step by step guide
9) Can you reach preboot mode? If no ,have you followed this? Garmin Updater.exe v.2.8.0
10) Probably no , but do you have NV backup?
11) Once you get a reply and a procedure to follow from our experts, please give an accurate reply about what you did and obtained results.
I'm writing this because sometimes it needs a lot of posts before understanding what has been already tried and what is needed. Being precise will help you and us in saving a lot of time and curing it
Thanks
1. Garmin DriveSmart 50LM, Firmware 540, HWID 2267.
2. Tryed to update unlocked firmware, but RGN tool doesn't show the HWID so I wrote it by myself.
3. After update device pops up message: "Software is missing!" and cannot load.
4. It cannot be seen from the computer as device anymore.
5. Tryed all the procedures with GarminCure3 but the device cannot boot and immediately shows that Software Missing.
6 I don't have any backup files.
I hope someone can help, please!
Thanks in advance!
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15th November 2017, 09:54 PM #1Junior Member
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15th November 2017, 10:50 PM #2Important User
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In it's worse meaning 'System Software Missing' can be quite a serious problem, however in most cases provided you used the correct firmware for your device it means that region 14 containing the main system software (fw_all.bin) is corrupt or even completely empty (i.e. erased, but not properly rewritten during your previous attempt). In that case the device should have defaulted to preboot mode and will remain in that state when turned on until the firmware is fully flashed to it.
Originally Posted by dejavuei
To confirm it is now in preboot, connect to PC, no need to hold the screen, look at [Only registered and activated users can see links. ] for an explanation and pic of how it should appear in Windows Device Manager when in preboot. If it does appear there, then follow the rest of this. If it doesn't show there it may be hosed differently.
- Remake the patched firmware entirely from scratch. Don't be temped to use whatever you previously patched, please get a 'known-good' original fw from Garmin server, here:
Code:Please Login or Register to see the links
- Don't override the HWID from '0000'. Although the HWID of 2267 is correct, probably the device itself knows to initialize that to correct value using it's bootloader. It's not unique to your DriveSmart, many modern devices are the same.
- Observing the RGN file safe-naming convention (226701000540.rgn), load the patched file to Updater.exe and select the USB Device radio button. When you connect your device the detail should immediately appear in the adjacent window.
- Press 'OK' on the GUI and wait for the flash to finish.
- It should now boot normally with patched firmware.
Last edited by Butters; 16th November 2017 at 11:23 PM. Reason: fix formatting of number list.
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