![Samsung ProXpress M456x Series Service Manual Download Page 164](http://html1.mh-extra.com/html/samsung/proxpress-m456x-series/proxpress-m456x-series_service-manual_4274369164.webp)
4. Troubleshooting
► Error Code
61-1500
► Error message
Unverified application(s) installed. Please contact administrator
► Symptom
When unverified 3rd party solution is installed, user or administrator is not easily noticed for the unverified solution,
which might cause market issue sooner or later.
► Troubleshooting method
1) Access SyncThru Web Service. You can check up Samsung Verified information in SyncThru Web Service
Maintenance Application Management Application.
2) If necessary, only administrator can delete the unverified application(s) or make them disabled.
► Error Code
61-1H01 / 61-1H04
► Error message
Firmware Update Failure: #61-1H0x. Firmware update has failed due to invalid FW file. Please try again after power
off and on. If this problem persists, contact service engineer.
► Symptom
Firmware update has completed with error.
► Troubleshooting method
1) Turn off and on.
2) Download valid file again. If you use USB memory stick, It must be removed via a USB safe removal.
3) Try firmware update again.
4) Replace main board if problem persists.
4-54
Copyright© 1995-2017 SAMSUNG. All rights reserved.