Differences

This shows you the differences between two versions of the page.

--- bootloop [2024/11/20 09:33] – torte
+++ bootloop [2025/01/21 12:22] (current) – torte
@@ Line 1: / Line 1: @@
-===== Sovol KlipperScreen (KLIPAD50) =====
+{{page>redirect#this_wiki_has_moved}}
-==== Boot loops / Black screen ====
+https://torte71.github.io/InsideSovolKlipperScreen/bootloop.html
+{{page>redirect#section}}
+----
-== Some causes for the looping boot animation ==
+====== Sovol KlipperScreen (Makerbase MKS KLIPAD50) ======
+===== Boot loops / Black screen ("unbricking") =====
+==== Some causes for the looping boot animation ====
   * Damaged "saved_variables.cfg"
   * Other damaged configuration files (printer.cfg, moonraker.cfg, etc.)
+  * KlipperScreen in a too recent version (depends on python-3.8, which is not available for Sovol's outdated armbian buster). See [[https://netztorte.de/3d/doku.php?id=updating#klipperscreen_python_38|klipperscreen_python_38]] for a fix.
-== Typical causes for the damaged files ==
+==== Typical causes for the damaged files ====
   * No more space left on the filesystem
   * Powering off the KlipperScreen by the switch without shutting it down first
   * Incompatible or wrongly installed additional klipper macros
-== Some causes for a black screen ==
+==== Some causes for a black screen ====
   * Updating the system without having the kernel and dtb file locked\\ (That became unlikely after Armbian Buster got removed from online archives in spring 2024.)
-== Fixes ==
+==== Fixes ====
   * Always make sure that there is enough space left on the filesystem first by removing old gcode files (and then reboot the device).
   * Clean up the ''saved_variables.cfg'' as shown below
-  * Do a factory reset using Sovol's ''armbian-update.deb''
+  * If that did not help: Do a factory reset using Sovol's ''armbian-update.deb''
-  * Do a full reflash of the eMMC using Sovol's ''KLIPAD50_IMAGE''
+  * If even that did not work: Do a full reflash of the eMMC using Sovol's ''KLIPAD50_IMAGE''
-== Cleaning up ''saved_variables.cfg'' ==
+==== Cleaning up ''saved_variables.cfg'' ====
   * Open that file in the web frontend (found in the ''machine'' tab in mainsail or the configuration tab ''{...}'' in fluidd)
   * Replace the content of that file with the following lines, then save and reboot the device:
@@ Line 30: / Line 36: @@
 </code>
-== Factory reset using Sovol's ''armbian-update.deb'' ==
+==== Factory reset using Sovol's ''armbian-update.deb'' ====
   * **This will revert all your changes to the config files** (like printer.cfg, etc.).\\ If the device can still be reached by the web frontend, you may want to back up these files first.
   * Download the ''armbian-update.deb'' for your device:
@@ Line 47: / Line 53: @@
   * The update process is also shown in this video: https://www.youtube.com/watch?v=b2jUo1KnxZw&t=157s
-== Full reflash of the eMMC using Sovol's ''KLIPAD50_IMAGE'' ==
+==== Full reflash of the eMMC using Sovol's ''KLIPAD50_IMAGE'' ====
   * It is recommended to get an USB-eMMC adapter like [[https://www.aliexpress.us/item/3256805428404625.html?spm=a2g0o.store_pc_allProduct.8148356.1.7bca1ad70ZKzwN&pdp_npi=4%40dis%21USD%21US%20%246.99%21US%20%241.99%21%21%216.99%211.99%21%40212aa2ac17038484556595237e184f%2112000033755356288%21sh%21US%21240163459%21&gatewayAdapt=glo2usa|this one]].\\ It allows you to flash the eMMC directly from your PC using software like e.g. [[https://www.balena.io/etcher/|Balena Etcher]]
     * Follow Sovol's guide on how to flash the eMMC card: https://github.com/Sovol3d/SOVOL_KLIPAD50_SYSTEM
@@ Line 54: / Line 60: @@
     * vasyl83's guide using two thumb drives: https://github.com/vasyl83/SV07update
     * You may also want to take a look on my guides how to [[booting|boot from external devices]] or [[access|getting access]] (both are quite technical)