Hi everybody.
I am making a firmware based on ble_app_uart example (PCA10028 NRF51422, Softdevice S110, NRF51 SDK9.0). In this firmware, I insert dfu part (follow by this instruction ) to support upload firmware via OTA(by nrfConnect android app). I upload successful at the first time (the MCU already has Softdevice and bootloader in memory). However, when I upload again it is failed and the android app show a message: upload failed dfu service disconnected.
Could you please tell me how to solve this problem?
Sorry because my English is not good. Thank you very much.
UPDATE: I put the log file for each test case:
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Step 1: I upload Softdevice and bootloader to MCU, then I use nrfconnect to upload my ble app, the result is successfull and the log file is here
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Step 2: After upload my ble app, I connect and re-upload my ble app (the ble app version is 0xFFFFFFFF) the result is failed and the log file is here
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Step 3: I erase the memory of MCU then upload Softdevice and bootloader same as step 1. After that, I upload the sample dfu file (dfu_test_hrm_s110.zip). The result is successfull and here is log file.
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Step 4: I connect and upload dfu_test_hrm_s110.zip second time, the result is successfull and this is log file.
