Sign in to your B123 account using the email associated with your order, then open the Downloads section. If you cannot sign in, use the account page’s password-reset link or contact B123 with your order reference. Do not send passwords or payment-card details.
Claim a free MQL source file
Open a source product page from the Free MQL Library. Sign in or register, return to that product page, and complete its zero-total claim. The current rule allows three distinct free-source products per account per site day. Download access follows the permission shown in your account; the standard permission allows three download attempts and expires after 30 days.
Check platform and file type
Confirm MT4 or MT5 and whether the package is an Expert Advisor, indicator, setfile, or editable source. Follow the package’s installation notes. MQ4 and MQ5 source files require the matching MetaEditor and any listed dependencies before they can be tested.
Compilation and missing files
Read the product’s diagnostic label and dependency notes. A “compile not run” label means no compilation result is provided; a missing-dependency label means additional files may be required. A successful compilation checks code and dependencies in the stated environment and does not verify trading performance.
Ask for setup help
Contact B123 with the product name, MT4/MT5 version, the exact error message, and your order reference if applicable. Support can first identify the type of issue; a repair, update, broker compatibility, or trading result is not promised unless explicitly stated for your package.
