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Screen & Display
OEM or high-quality compatible screens for iPhone, Samsung, Tecno, Infinix, Itel and laptops — fitted and tested.
Certified Engineers • Written Warranty
Hardware & Software Repair
From cracked screens to board-level micro-soldering — diagnosed first, quoted clearly, repaired professionally, and backed by a 12-month written warranty on repaired parts.
⚠️ Back up your data before every repair. SIERRAUNLOCK is not liable for lost data. Read the Must-Read rules and the GTC Terms below.
What We Repair
Phones, tablets and laptops — all brands, both hubs.
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Battery Replacement
Genuine-grade batteries with health calibration and charging-cycle testing before handover.
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Charging Ports
Port cleaning, flex replacement and soldered port repair for all charging standards.
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Water-Damage Treatment
Ultrasonic bath cleaning, corrosion treatment and full diagnostics — with honest pre-repair risk disclosure.
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Board-Level / Micro-Soldering
Chip-level diagnostics and repair under microscope — the "Learn Before You Earn" specialty of our Koidu engineering hub.
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Software & Flashing
OS re-flashing, updates, virus removal and performance optimization for phones and computers.
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Laptop & Computer Repair
HDD/SSD upgrades, RAM, keyboards, fans, hinges, Windows installation and full system servicing.
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Audio, Camera & Sensors
Speakers, microphones, earpieces, front/back cameras and fingerprint/face sensor modules.
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Housing & Parts Fitting
Customer-supplied or marketplace parts fitted professionally — every part described clearly, zero fraud.
Most Important — Must Read
Data & device liability rules that protect you and our engineers.
📌 Data and Device Liability
These rules apply to every device that enters our workshops. They exist so there is never a misunderstanding between customer and technician.
- Data loss risk: shops are not responsible for lost data. You must back up your phone before leaving it.
- Pre-existing damage: technicians are not liable if opening a heavily damaged or water-damaged phone causes it to stop working entirely.
- Passcodes: we may ask for your lock-screen code strictly to test hardware functions before and after the repair.
Quotes, Parts & Payment
- Estimates: technicians diagnose the device and provide a price quote based on the model (e.g. Tecno, Samsung, iPhone) before starting work.
- Parts used: replacements use original equipment manufacturer (OEM) or high-quality compatible third-party parts depending on availability — always disclosed on your quote.
- Unclaimed devices: devices not collected within 30 days of completion notice may attract a storage fee; after 60 days they may be treated as abandoned under Sierra Leone law.
Book a Repair
Fill the form — it opens WhatsApp with your booking pre-typed to our team.
General Terms & Conditions for Repair Service
Version October 2024 — GTC Repair. Applies to all repairs after the manufacturer warranty period.
General Terms and Conditions for Repair Service of Hardware Products
Repair service of hardware products after the expiration of the warranty period shall be governed by these General Terms and Conditions (hereinafter referred to as the "GTC") unless otherwise agreed in writing between SIERRAUNLOCK and Customer.
1. Definitions
1.1 "HW Product" means any hardware product which SIERRAUNLOCK sells to or services for Customer.
1.2 "Repair" means to repair and maintain the function and performance set forth in the specifications of the HW Product.
1.3 "Product" means any HW Product which Customer requests SIERRAUNLOCK to Repair.
1.4 "Repaired Product" means any Product to which the Repair has been done, or a substitute product of the Product.
1.5 "Repair Parts" mean any part of the Repaired Product on which Repair has been done by SIERRAUNLOCK, or any replacement part of the Repaired Product.
2. Application
2.1 This GTC stipulates the approaches of the Repair service of HW Products after the expiration of the warranty period.
2.2 SIERRAUNLOCK, as a general rule, does not accept repairs for second-handed HW Products obtained through a third party without proof of ownership.
2.3 Repair service of HW Products after the expiration of the warranty period shall be paid.
2.4 The Product which SIERRAUNLOCK Repairs shall be limited to Products falling into either of the following: ① Products which SIERRAUNLOCK judges as obviously defective, or ② Products for which Customer specifies the defect and SIERRAUNLOCK is able to reproduce the defect.
3. Repair Request
3.1 When Customer requests Repair service, Customer shall notify SIERRAUNLOCK of the request and the content of the defect, and shall send or deliver the Product to SIERRAUNLOCK at Customer's expense.
3.2 SIERRAUNLOCK shall check the content of the defect based on clause 2.4 and judge whether the Repair is possible; if possible, SIERRAUNLOCK shall decide whether Repair of the Product or replacement with a substitution is appropriate.
3.3 SIERRAUNLOCK may take several weeks to make the judgment and prepare a quotation from receipt of the Product. In case of actual Repair or supply of a substitution, additional time may be required.
3.4 SIERRAUNLOCK accepts the Repair request on condition that Customer acknowledges the request needs time as mentioned above, and Customer shall not claim compensation or other liability for damages incurred due to not being able to use the Product during such period.
3.5 The Repair contract comes into effect when SIERRAUNLOCK notifies Customer of acceptance based on the quotation issued by SIERRAUNLOCK. If Customer cancels after the contract is in effect, Customer shall pay the expenses incurred by SIERRAUNLOCK.
4. Repair Service
4.1 The content of the Repair service shall be the Repair of the Product, supply of a substitution, or replacement of parts of the Product.
4.2 Substitutions and replacement parts shall have the same or more function than the Product and parts used in the Product. Title to parts removed from the Product shall belong to SIERRAUNLOCK.
5. Warranty
5.1 SIERRAUNLOCK grants Customer a quality warranty on the Repaired Product for twelve (12) months from the delivery/shipping date of the Repaired Product.
5.2 Any defect of the Repaired Product caused in the warranty period shall be governed by this GTC; provided, however, that any defect caused in any part other than Repair Parts shall not be covered by the warranty.
5.3 If a defect occurs during the warranty period, SIERRAUNLOCK shall Repair the Repaired Product, supply a substitution or replace parts again without charge. Customer shall notify SIERRAUNLOCK of the request and the content of the defect, and send the Repaired Product to SIERRAUNLOCK at SIERRAUNLOCK's expense.
6. Repair Charge / Payment
6.1 Repair charges and the price of substitutions shall be based on the price list of SIERRAUNLOCK.
6.2 Customer shall pay the Repair charge or price in accordance with the payment terms set forth in the quotation issued by SIERRAUNLOCK.
7. Exemption
7.1 Except the warranty liability set forth in Art. 5, SIERRAUNLOCK shall not assume any liability for damages caused due to not being able to use the Product (including lost profits and third-party compensation claims).
7.2 If SIERRAUNLOCK fails to deliver the Repaired Product by the due date due to force majeure — act of God, wars, civil wars, riots, labor disputes, governmental requests, orders or regulations, accidents in transportation — SIERRAUNLOCK shall be exempted from liability for delay or failure to deliver.
7.3 Before sending the Product, Customer shall back up data stored in the Product at Customer's own risk. SIERRAUNLOCK may, at its discretion, delete data during Repair and is not obliged to restore it afterwards, and assumes no liability for deleted data.
7.4 SIERRAUNLOCK may, at its discretion, remove any label added by Customer (e.g. asset-management labels) and is not obliged to recover it after Repair.
7.5 SIERRAUNLOCK is not obliged to accept returns and refunds regarding the Repaired Product. Warranty is limited to the content of clause 5.3.