Hello,
when switching from 1.8.0 to v1.9.1 release unfortunately modem delta update fails. I have also tried with v2.0.2 but without success. I am trying to update the modem fw from mfw_nrf9160_1.3.2 to mfw_nrf9160_update_from_1.3.2_to_1.3.2-FOTA-TEST.bin.
The delta update hangs right after this call
[00:00:05.285,827] <inf> dfu_target_modem_delta: Deleting firmware image, this can take several minutes
Further investigation shows that the code hangs in the while loop of that function
static int delete_banked_modem_delta_fw(void)
{
int err;
int offset;
int timeout = CONFIG_DFU_TARGET_MODEM_TIMEOUT;
LOG_INF("Deleting firmware image, this can take several minutes");
err = nrf_modem_delta_dfu_erase();
if (err != 0) {
LOG_ERR("Failed to delete backup, error %d", err);
return -EFAULT;
}
while (true) {
err = nrf_modem_delta_dfu_offset(&offset);
if (err != 0) {
if (timeout < 0) {
callback(DFU_TARGET_EVT_TIMEOUT);
timeout = CONFIG_DFU_TARGET_MODEM_TIMEOUT;
}
if (err != NRF_MODEM_DELTA_DFU_ERASE_PENDING &&
err != NRF_MODEM_DELTA_DFU_INVALID_DATA) {
LOG_ERR("Error during erase, error %d", err);
}
k_sleep(K_SECONDS(SLEEP_TIME));
timeout -= SLEEP_TIME;
} else {
callback(DFU_TARGET_EVT_ERASE_DONE);
LOG_INF("Modem FW delete complete");
break;
}
}
return 0;
}
