In our two batch of products, first batch we use the QFAAE0, every thing worked well. But for the second batch the QFAAE1 was used. The issue appeared and its RF performance was very bad. For the BLE advertising monitoring, only scanning for a few seconds. Then no beacon advertising was scanned anymore. The board were in same design, and the firmware were same version. All external components are checked to be correct. If moving the QFAAE0 to the new boards which has QFAAE1, it could work well.
My question, is there any design change from QFAAE0 to QFAAE1? Does it influence the RF performance and BLE TX/RX? Or need any firmware upgrading for the QFAAE1? Thank you, and looking forward to your reply. We are going to move the QFAAE1 to the previous old batch of board to see if it can work.
