M300 provisioning SRAPS RemCfg: Error loading file

Hi, I am new to Snom desk phones and I am trying to upgrade the built-in certificate of my M300 to SHA-2.

I followed this guide: Firmware patch from SHA-1 to SHA-2 for Snom 715

My current firmware is BSV530B7 and I have successfully added the M300 to Sraps.

Unfortunately, the base encounters an error when loading the provisioning file:

RemCfg: Checking for settings] 
loc3 .Info  2022-06-03T13:14:14Z 242-[ RemCfg: Attempting fetch of file: https://secure-provisioning.snom.com/snomM300/XXPrivacyXX] 
clk  .Info  2022-06-03T13:14:18Z 242-[ UTC time set initiated by SNTP (1654254858 s)] 
clk  .Info  2022-06-03T13:14:18Z 242-[ Local time set (2022-06-03 13:14:18)] 
loc3 .Info  2022-06-03T13:14:18Z 242-[ Time and Date and DST Broadcast to handsets] 
loc3 .Info  2022-06-03T13:14:24Z 242-[ RemCfg: File loaded successfully] 
loc3 .Info  2022-06-03T13:14:24Z 242-[ RemCfg: Detected XML file] 
loc3 .Info  2022-06-03T13:14:24Z 242-[ RemCfg: Attempting fetch of file: https://secure-provisioning.snom.com/snomM300//XXPrivacyXX-/XXPrivacyXX] 
loc3 .Info  2022-06-03T13:14:31Z 242-[ RemCfg: Error loading file] 
loc3 .Info  2022-06-03T13:14:31Z 242-[ RemCfg: Attempting fetch of file: https://secure-provisioning.snom.com/snomM300//XXPrivacyXX-firmware] 
loc3 .Info  2022-06-03T13:14:39Z 242-[ RemCfg: File loaded successfully] 
loc3 .Info  2022-06-03T13:14:39Z 242-[ RemCfg: Detected XML file] 
loc3 .Info  2022-06-03T13:14:39Z 242-[ RemCfg: Provisioning completed] 

If I check the SSL certificate, it still is SHA-1. Did I miss something?