# MT4 & MT5 Decompilation | EX4 to MQ4 · EX5 to MQ5 MT4 and MT5 decompilation for indicators and EAs: EX4 to MQ4 and EX5 to MQ5 source recovery. Free file assessment, reference pricing, published comparisons and a clear source-delivery scope. Canonical: https://mqlfix.top/ Language: en Updated: 2026-11-11 EX4 / EX5 · INDICATORS & EXPERT ADVISORS # MT4 / MT5 Decompilation EX4 → MQ4 · EX5 → MQ5 Focused on EX4 and EX5 decompilation and editable source recovery. Share your original file; confirm feasibility, source deliverables and the quote before work begins. Free file assessment · Private handoff · Verify before the balance 01 / OUR CORE BUSINESS ## MT4 or MT5. Start with your file. ### MT4 decompilation EX4 → MQ4 Decompilation and MQ4 source recovery for MT4 indicators and EAs. Confirm editable source, dependencies and comparison checks in your quote. ### MT5 decompilation EX5 → MQ5 Decompilation and MQ5 source-recovery assessment for MT5 indicators and EAs, with an agreed source-delivery and verification scope. ### Send the file. Confirm your quote. Reference ranges for one indicator or EA source-recovery project. The actual file, version and delivery scope determine the final quote, confirmed before payment. 02 / REAL WORK ## Evidence you can inspect. AISTIM / MT4 ### Apex Scanner Elite The published case compares chart displays, signals, price levels and input settings. Read what was checked, and the boundaries of the evidence. Published AISTIM case. BTCUSD M5 is one observed scenario; the screenshot does not cover every symbol, timeframe or input combination. Open image to inspect. 03 / FROM FILE TO SOURCE ## Assess. Quote. Verify. Deliver. - 01 Describe & send Identify the platform and goal; share files privately. - 02 Agree the scope Confirm feasibility, output, price and delivery window. - 03 Review the build Compare against the original under agreed conditions. - 04 Approve & receive Settle the agreed balance and receive the final files. BEFORE YOU REQUEST A QUOTE ## Cost, files and verification. ### How much does MT4 / MT5 decompilation cost? Existing reference ranges are USD 80–200 for one indicator and USD 200–500 for one EA source-recovery project. The file, version, dependencies and requested deliverables determine the final quote. Confirm the total and delivery list before payment. ### What files should I prepare for a quote? Prepare the original EX4 or EX5, identify whether it is an indicator or EA, and list the terminal build, presets and companion indicators or DLLs. Explain the result you need. Start with the enquiry brief, then exchange program files through an agreed private channel. ### How do I verify the delivered program? Agree the checks before work begins. Compare the original and delivered build using the same terminal, symbol, timeframe and inputs. Check relevant displays, alerts, orders or logs, and report reproducible differences before the agreed final handoff. 04 / RELATED SERVICES ## Need more after source recovery? ### License & expiry issues Account binding, expiry messages and activation problems: define the issue and the permitted repair. ### MT4 to MT5 conversion Port MQL4 source to MQL5 and verify the behavior that matters to your workflow. ### Custom EAs & indicators Turn an explicit trading or display specification into software you can test and maintain. ### Diagnostics & behavior checks Investigate errors, indicator differences and EA behavior using repeatable evidence. PLATFORMS & LANGUAGES Built around the platforms you use. PREPARE YOUR ENQUIRY ## Know what to send and what to check. 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 ### What to check before approving a verification build A repeatable acceptance process for source recovery and repair work. YOUR NEXT STEP ## Need the source behind your EX4 or EX5? Tell us your platform, your file and the result you need. We will confirm the scope before you commit. - [Get an MT4 quote ↗](https://mqlfix.top/assessment/?service=ex4-to-mq4) - [Get an MT5 quote ↗](https://mqlfix.top/assessment/?service=ex5-to-mq5) - [Inspect the comparison ↗](https://mqlfix.top/cases/apex-scanner-elite/) - [Scope & delivery →](https://mqlfix.top/services/ex4-to-mq4/) - [Scope & delivery →](https://mqlfix.top/services/ex5-to-mq5/) - [Telegram ↗](https://t.me/alonginchina) - [Decompilation FAQ →](https://mqlfix.top/faq/) - [Read the case study →](https://mqlfix.top/cases/apex-scanner-elite/) - [Pricing, payment & common questions →](https://mqlfix.top/how-it-works/) - [Details & next step →](https://mqlfix.top/how-it-works/) - [Details & next step →](https://mqlfix.top/guides/ex4-ex5-mq4-mq5/) - [Details & next step →](https://mqlfix.top/guides/verification-before-balance/) - [Read all decompilation questions →](https://mqlfix.top/faq/) - [03 / REPAIR License & expiry issues Account binding, expiry messages and activation problems: define the issue and the permitted repair. Explore service ↗](https://mqlfix.top/services/license-and-expiry/) - [04 / MIGRATION MT4 to MT5 conversion Port MQL4 source to MQL5 and verify the behavior that matters to your workflow. Explore service ↗](https://mqlfix.top/services/mt4-to-mt5/) - [05 / BUILD Custom EAs & indicators Turn an explicit trading or display specification into software you can test and maintain. Explore service ↗](https://mqlfix.top/services/custom-development/) - [06 / VERIFY Diagnostics & behavior checks Investigate errors, indicator differences and EA behavior using repeatable evidence. Explore service ↗](https://mqlfix.top/services/diagnostics-testing/) - [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/) - [What to check before approving a verification build](https://mqlfix.top/guides/verification-before-balance/) - [Read guide →](https://mqlfix.top/guides/verification-before-balance/) - [Free tools →](https://mqlfix.top/tools/) - [MT4/MT5 News](https://mqlfix.top/news/) - [Request a free assessment →](https://mqlfix.top/assessment/)