hello i have two brokers broker1 and broker2 . by default the EA is installed on broker2 . How can i change to broker1?
I assume, you have 2 MT4 installations on 1 Server/PC.
Go to MT4 broker2 and open menu File - Open Data Folder.
As a result you will get an Explorer window with a file structure.
Your EA is in the MQL4 / Experts directory and has the extension .ex4.
In case, you are also using DLLs/Includes (with extension .mqh typically), also these files need to be considered. Location is MQL4 / Include.
The easiest way to handle this, is to copy the full MQL4 tree as long as you do not fear any same filenames with newer dates/versions for broker1.
After that, open MT4 broker1 Data folder as decribed above.
Paste the MQL4 folder to this directory structure.
Close the MT4 broker1 and restart.
Assign the ea to a newly opened chart window (maybe the symbols are named differently in both brokers).
Should work immediately.