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--- products:sbc:vim3:install-os:boot-into-upgrade-mode [2022/11/01 02:18]
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+++ products:sbc:vim3:install-os:boot-into-upgrade-mode [2023/03/23 21:33] (current)
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@@ Line 6: / Line 6: @@
 There are 4 ways to boot into upgrade mode:
+  * TST Mode (Recommended)
   * Keys Mode (Side-Buttons)
   * Serial Mode
-  * TST Mode (Recommended)
   * MRegister Mode
-===== TST Mode (Recommended) =====
+===== TST Mode =====
+<WRAP tip >
+TST Mode recommended as preferred upgrade mode
+</WRAP>
   - Connect VIM3 to PC with a USB-C cable.
@@ Line 28: / Line 32: @@
   - Connect VIM3 to PC with a USB-C cable.
-  - Refer to [[products:sbc:vim3:development:setup-serial-tool|Setup Serial Too]] to setup your Serial Tool for VIM3.
+  - Refer to [[products:sbc:vim3:development:setup-serial-tool|Setup Serial Tool]] to setup your Serial Tool for VIM3.
   - Once again, make sure you’ve done the correct connections and setup.
   - Hit ''SPACE'' on your keyboard at the moment of bootup to stop autoboot. This step will let VIM3 boot into U-Boot command line.
   - Type ''run update'' in the terminal of U-Boot. The Sys LED (White) will turn ON when you’ve entered Upgrade Mode.
+===== MRegister Mode =====
+  - Power on VIM3.
+  - Use a tweezer to short-circuit the two pads of the M register, and without releasing…
+  - Short press the Reset key and then release it, to boot into upgroup mode
 ===== Bootable TF Card =====

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