Index: Boot/user/ota_ble.c
===================================================================
--- /YC3121_demo/ModuleDemo/updata_app/Boot/user/ota_ble.c	(revision 813)
+++ /YC3121_demo/ModuleDemo/updata_app/Boot/user/ota_ble.c	(working copy)
@@ -337,7 +337,6 @@
 
 void OtaData2FlashEnd(void)
 {
-    qspi_flash_sectorerase(APPWRITEADDR + CurOta2FlashSize-CurBuck_length);
     enc_write_flash_bulk(APPWRITEADDR + CurOta2FlashSize-CurBuck_length, BUCK,CurBuck_length, 1);
 }