IC Unlock Lab · Code Extraction
MCU Crack: read out locked microcontroller firmware
Recover lost source code, keep legacy products in production, and analyze field failures. Our lab extracts protected Flash, EEPROM and OTP memory from 30+ MCU families and returns a verified BIN/HEX you can reprogram.
Definition
What is MCU crack?
MCU crack — also called IC unlock, MCU decryption or chip code extraction — is the process of reading the program and data memory out of a microcontroller whose read protection (its security or lock bits) has been enabled. The result is the original firmware image, in binary or hex form.
Most modern microcontrollers ship with a protection mechanism that blocks an ordinary programmer from reading back the code stored on the chip. Once that protection is set, the firmware is locked inside the silicon. MCU crack defeats that read-back lock so the contents can be recovered.
Engineers reach for it when the original source code is lost or corrupted, when the developer or vendor who held the code is no longer available, when an old product must be kept in production on a chip that is going obsolete, or for failure analysis and repair of an existing board.
Need the work done on real hardware? Our partner lab runs a full MCU Crack and IC decryption service end to end.
Lawful use only
We work with customers who own the firmware or are authorized to access it — recovering your own code, maintaining legacy products, or performing analysis you have the right to perform. You confirm you hold those rights before we begin.
How it works
The MCU crack process, step by step
Six stages from a part number to a working firmware file. You get a feasibility answer and a fixed quote before anything ships.
Identify the chip
Send the full part number, package and top marking. We confirm the exact family and the protection generation it uses.
Feasibility & quote
We assess the lock mechanism, success likelihood, lead time and price. Evaluating your request costs nothing.
Send samples
Ship working chips — quantity depends on difficulty. Board photos or a schematic give useful context.
Memory extraction
Using non-invasive and, where needed, invasive techniques, our lab recovers the protected memory contents.
Verify the dump
We read back, check integrity and, where possible, program a sample to confirm the firmware runs as expected.
Delivery
You receive the verified BIN/HEX plus notes — and, on request, freshly programmed blank chips.
Component coverage
Microcontrollers we can crack
A working list of MCU manufacturers and series we unlock and decrypt. Type a part number or brand to filter. Don't see yours? Ask anyway — coverage grows constantly.
No match in the visible list. Send the part number to our lab — many more are supported than we can list here.
Background
MCU memory & programming types
Knowing how a chip stores and loads its code tells you what can be recovered and how. These are the memory technologies and programming interfaces we work with.
Memory we extract
Flash
Re-writable program memory in nearly every modern MCU. The main target for firmware recovery.
EEPROM
Non-volatile data and configuration memory holding calibration values, keys and settings.
OTP
One-time programmable memory, written once at the factory and then permanently fixed.
Mask ROM
Code fixed during silicon fabrication. Common in very high-volume legacy parts.
Programming & debug interfaces
ISP — In-System Programming
Loading firmware while the chip sits in the circuit, usually over a UART or SPI bootloader.
ICP / ICSP — In-Circuit Serial Programming
Programming directly through a dedicated header on the board without removing the part.
IAP — In-Application Programming
Firmware that rewrites part of its own memory at runtime to support field updates.
JTAG
The standard boundary-scan and debug interface used across many MCU and CPU families.
SWD — Serial Wire Debug
The compact two-wire debug interface used by ARM Cortex-M microcontrollers.
BDM — Background Debug Mode
The single-wire debug and programming interface on many Freescale/NXP devices.
Pricing
What does an MCU crack cost?
There is no flat rate, because price tracks difficulty. The same effort that recovers a common 8051 in a day can take weeks on a hardened modern part. We quote each job up front, after a free evaluation — so you always know the number before you commit.
The honest version
If a part has been done before, it is fast and inexpensive. If it needs fresh research, it costs more and takes longer. We tell you which case you are in during the evaluation, at no charge.
- 01MCU family
- Brand, core and protection generation are the biggest driver. A legacy 8051 and a modern secure ARM part are not in the same range.
- 02Prior work
- A chip the lab has unlocked before is far cheaper than one that requires new analysis and tooling.
- 03Quantity
- One-off recovery versus an ongoing production need changes both the price and the approach.
- 04Turnaround
- Standard scheduling costs less than an expedited, jump-the-queue request.
- 05Package & condition
- BGA and fine-pitch packages, or damaged samples, add handling effort.
Questions
MCU crack FAQ
Is MCU crack legal?
How long does an MCU crack take?
What do I need to send to get a quote?
Will my chips survive the process?
What file do I receive at the end?
Will my firmware be kept confidential?
Can every microcontroller be cracked?
Start here
Send an MCU crack enquiry
Tell us about your chip and we will come back with a feasibility answer and a quote. Evaluation is free, and nothing ships until you approve the price.
Helpful to include
- Part number & marking — e.g. STM32F103C8T6
- Package — DIP, SOP, QFP, QFN, BGA…
- Quantity of samples you can supply
- Your goal — recovery, migration or analysis
Request a quote
Fill this in and we will open a pre-filled message for you to send.
Or go straight to the service: pcbsync.com / IC unlock
Locked chip? Let's read it out.
From a single firmware recovery to keeping a product line alive, our lab handles MCU crack and IC decryption end to end. Find out if your part is feasible — for free.
Start your MCU Crack enquiry →