nRF54L15 + MCUboot + NCS v3.0.2: Range issue with MCUBoot

Hi,

We’re developing a BLE-based product on the nRF54L15 (InsightSIP ISP2454-LX) using nRF Connect SDK v3.0.2, with MCUboot enabled for DFU.

Our BLE application is based on a custom service and configured to use +8 dBm Tx power. Initially, everything works fine. I am getting good range with +8 dBm Tx power.

I used following macro to achieve same.

CONFIG_BT_CTLR_TX_PWR_DYNAMIC_CONTROL=y
CONFIG_BT_CTLR_TX_PWR_PLUS_8=y

Problem:

After enabling MCUboot via sysbuild, the BLE behavior changes. I am getting ~5 times less range.

We confirmed that this issue only occurs after enabling MCUboot. Without the bootloader, range is very good.

Please help me to get same range after adding MCUBoot.80015.prj.conf 5123.mcuboot.conf 1803.sysbuild.conf

0 ByteSpectrum 8 months ago in reply to Hieu

Hi Hieu,

No They are not different. Actually, those are from same build.

I am sure it will be very difficult for you to give reason behind this behavior.

As I am not able to reproduce, let's close this thread as of now. I will contact if issue reproduce again in future.

Thanks,

Tarun
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