nrf52832 ble mesh dfu (OTA) - several problems

[emoney12]

Hello,

I am developing ble mesh module using nrf52832 and trying to do DFU for over 100 nrf52832 modules. 

but sometime i got some problem that .....

(1)

I see a msgs of DFU transferring in terminal program even though DFU transfer is finished. how can i solve this?

(2)

DFU time is too long, when it is started, it takes at least 1 hour and half. Can i get how to get it done quickly?

(3) 

There are two different types of DFU, one is for ble mesh(serial), another is just ble OTA DFU(using dfu app).  

Is there any method that OTA DFU(dfu app) apply for BLE Mesh? 

please help me, i will wait for your reply.

thank you.

[Mttrinh]

Hi,

1. Can you give me more details? What steps have you done? Which SDK, Softdevice and device are you using? It would be great if you also could provide some logs.

2. The speed depends on the size of the packet you are trying to send, but It is normal that Mesh DFU is slow. Edvin's answer in this thread have more details regarding this.

3.

Is there any method that OTA DFU(dfu app) apply for BLE Mesh? 

I assume by this you mean DFU using a phone? Unfortunately, Mesh DFU from a phone is not supported.