# V4.3.21_beta1

## Overview
This release mainly optimize esim relative features, and fixed some known bugs.

## Synchronized Updated Models
GL-E750V2 Mudi

## New Features
*None

## Bug Fixes
* Fixed the problem that esim manage page is lost after installing some esim profiles.
* Fixed the problem that some ICCIDs are too short and esim profile displays abnormally.
* Upgrade apn config file to ensure that esim seed profile can automatically configure the correct APN.
* Fixed bug that esim profile may install failed for AT respond timeout.
* Optimized the esim log export feature so that user and debug log can be exported in one time.
* Fixed the bug that esim displays abnormally when some modules turn on echo.