I can't update the Xbee PRO900HP firmware

Question

I have not been able to get the XCTU to recognize two XbeePRO 900 HP digimesh RF modules. The modules are mounted on a USB adapter.
I have tried to use the XBee recovery tool without success. I have tried with firmware versions 8462 and 8062
After finishing the automatic reset, a message appears asking me to manually reset the module, but neither the adapter nor the module has a reset button.
When I exit this screen, a window is displayed with a message
"error updating the radio firmware"
there is not an active bootloader in the module
Can anyone please recommend what to do?
Thanks

Answer 1

Sounds like you are not connecting all of the lines needed to perform the update with. Try using a board such as the XBIB-U or XBIB-U-DEV

Answer 2

Thanks
But I don't have these accessories, I would have to import them since they don't exist in the local market of my country ( Ecuador).
At this moment I only need to make some simple tests with the modules, if they do not work I would not use them and I would have to look for another solution.
Is there no other way to try to reset them or update the firmware?