Reinstall covers, run the built-in diagnostic routine (manual page 4-22 describes entering service mode by holding “Menu” + “Power” for 5 seconds). Confirm no error codes remain.
Once obtained, save it with a clear filename: ES-H126LLA0_ServiceManual_v2.3.pdf . Create a folder with subdirectories: es-h126lla0 service manual
This log becomes invaluable for future repairs and warranty claims. es-h126lla0 service manual