I installed the tool, updated system, enabled VoLTE and FDD LTE/CBS, rebooted, and made a call to my home VOIP line. Indicator maintained “4G” in the notifications area.
I tried to issue both of your commands while the call was in progress: AT-BMRAT
-bash: AT+BMRAT: command not found
According to my carrier (Telia Sweden), VoLTE is included in my subscription. I have enabled it through the bm818-tool and rebooted, but I only get:
+BMRAT: UMTS
I am in Spain and use roaming, is there a chance it can work anyway?
Based on your date Nov 26 2020, there appears to be an updated firmware at least. I haven’t had issues on SMS/MMS myself (other than MMS images never deleting when message is deleted). What were your SMS/MMS issues specifically? Do you use the Purism service or other service for mobile?
Did support say this firmware update was for t-mobile only, or is it something more of generic update for the modem that could work on other mobile providers. How did you upgrade?
Purism support did not have me update any firmware. I have not done any firmware updates. Out of frustration I reflashed the entire phone, but that didn’t help, so I bought a new BM818 card, which did help. As I indicated elsewhere, I don’t know if the original BM818 card had a hardware or firmware problem. I hope this answers your question.
Yeah because newer modem card come with newer/diferent ADSP Blobs firmware which you got to working, but buying another card was not necessary, it was simply reprogramming a new firmware with Purism team @joao.azevedo
You might be correct. However, there didn’t seem to be too many people experiencing the problems that I had, so I cannot exclude some hardware failure unique to me.
Any way i can test and flash the 2020 firmware for the A1 baseband 1 modem type (i am glutton for punishment)? For example the modem will never automatically connect to data after restart (with VPN selected to autoconnect - it does connect automatically with VPN off so maybe a new version of Network Manager, Modem Manager will fix this?), as well as experiencing random disconnects, i am wondering if this may help at even just a little would be good.