Unable to flash MTR version from 4.0.5 to Signed 4.1.0 (rCell 100).

Issue noticed on the MTR (rCell 100 only) Product Line.

If the MTR product has firmware version 4.0.5, there is a key mismatch that will not allow the customer to flash directly to the Key Signed firmware version of 4.1.0-Signed or later (example 4.2.x, 4.3.x, etc...). File named rcell-mtrv1-upgrade_4.1.0-signed.bin or rcell-mtr-upgrade_4.1.0-signed.bin.

There are two workarounds for this issue:

1. Flash from version 4.0.5 to the standard 4.1.0 version. For MTR-LAT1/LEU1/LVW2 products, file rcell-mtrv1-upgrade_4.1.0.bin. For other MTR-3G products, file rcell-mtr-upgrade_4.1.0.bin. Customer can now flash to the 4.1.0-Signed firmware.

2. Flash from version 4.0.5 to the standard 3.7.3 version. For MTR-LAT1/LEU1/LVW2 products, file rcell-mtrv1-upgrade_3.7.3.bin. For other MTR-3G products, file rcell-mtr-upgrade_3.7.3.bin. After flashing to version 3.7.3, the 4.0.5 Username and Password are lost, so customer will have to hold in the RESET button for 30 seconds to default the MTR to the admin/admin Username and Password. After logging in to 3.7.3, customer will set up the MTR, perform Save & Restart then re-login. At this point, customer is able to flash upgrade to the 4.1.0-Signed firmware.

Any further questions, please create a Support Ticket at https://support.multitech.com and reference this Resolution.