Restore factory firmware

Hi Quectel techies. I am looking for resources or guide to restore OEM firmware that comes with the module when it leaves the factory. I am using the EC200U-CN module for testing QuecPython SDK but would like to go back to using the original firmware.

Please assist.

hi, Gideon

Please provide your email address and I will send it to you by email

Hi Felix,

My email address is gideon@codeforafrica.org

Hi @Felix.feng-Q,

I am right now working on a project with EC200U-CN, I have tried factory reset for my EC200U module using AT commands - ATV0 as given in the AT commands manual. But, few have not reset to factory settings, i.e., to use TTS function, I have a AT command so when it is executed it needs to play audio but it is directly giving response as played the audio or null value played.

So, can you share me the factory reset firmware or updated firmware?
Below is the model number:
AT+CGMR
EC200UCNAAR02A10M08

hi, Navya_B
I’m sorry. I’m a little confused

May I ask you what your specific question is?

Hi @Felix.feng-Q, I am trying to send a text(or String) and hear that at speaker output at SP+ and SP- of my EC200U. But the output I am hearing is character by character. How to read the character at once.

Are you referring to playing English TTS? The EC200U does not support English TTS. If you are playing fixed content, I suggest you could achieve it by playing an audio file.

Yes I am referring to play English TTS, then in what format, I need to give to TTS and use PlayTTS command to play audio.