# MT4 & MT5 practical guides

Prepare better briefs, understand files, plan migration and check program deliveries.

Canonical: https://mqlfix.top/guides/
Language: en
Updated: 2026-11-11

KNOWLEDGE DESK

# Clear answers before the enquiry.

Practical reading for a clearer brief and a testable delivery scope.

MT4 / MT5

## Read, prepare and compare.

PRACTICAL GUIDE / 01

### EX4, EX5, MQ4 and MQ5: what to send

Identify your program, source files and dependencies before requesting a quote.

PRACTICAL GUIDE / 02

### A practical MT4 to MT5 migration checklist

Separate code changes from the behavior you need to preserve.

PRACTICAL GUIDE / 03

### What to check before approving a verification build

A repeatable acceptance process for source recovery and repair work.

PRACTICAL GUIDE / 04

### Your EA is not trading: prepare a useful diagnostic brief

Collect the setup and evidence that make a problem reproducible.

PRACTICAL GUIDE / 05

### How to brief an indicator repainting check

Separate historical appearance from observations made as bars arrive.

PRACTICAL GUIDE / 06

### Write an EA brief a developer can actually implement

Replace vague strategy descriptions with rules and worked examples.

- [Home](https://mqlfix.top/)
- [EX4, EX5, MQ4 and MQ5: what to send](https://mqlfix.top/guides/ex4-ex5-mq4-mq5/)
- [Read guide →](https://mqlfix.top/guides/ex4-ex5-mq4-mq5/)
- [A practical MT4 to MT5 migration checklist](https://mqlfix.top/guides/mt4-to-mt5-checklist/)
- [Read guide →](https://mqlfix.top/guides/mt4-to-mt5-checklist/)
- [What to check before approving a verification build](https://mqlfix.top/guides/verification-before-balance/)
- [Read guide →](https://mqlfix.top/guides/verification-before-balance/)
- [Your EA is not trading: prepare a useful diagnostic brief](https://mqlfix.top/guides/ea-not-trading/)
- [Read guide →](https://mqlfix.top/guides/ea-not-trading/)
- [How to brief an indicator repainting check](https://mqlfix.top/guides/indicator-repainting/)
- [Read guide →](https://mqlfix.top/guides/indicator-repainting/)
- [Write an EA brief a developer can actually implement](https://mqlfix.top/guides/write-an-ea-brief/)
- [Read guide →](https://mqlfix.top/guides/write-an-ea-brief/)