Lenovo B40 70 BOTTOM Base Cover / Casing — OEM-Grade Replacement
A cracked base cover or a broken hinge mount on a Lenovo B-series affects rigidity and heat dissipation. We replace the lower chassis assembly with an OEM-matched part, re-seat all internal connectors, and verify port alignment before returning the machine.
Part specifications
| Condition | New OEM-grade |
|---|---|
| Finish | Matte ABS / Magnesium alloy (model-specific) |
| Warranty | 30 days |
Scope of service
What we replace
- Cracked base cover with visible flex or exposed internals
- Lower chassis with broken hinge mounts
- Base panel with stripped screw bosses
- Cover damaged by a drop impact affecting port alignment
What we don't replace
- Top cover / display lid (separate assembly)
- Internal frame damage requiring welding
- Cosmetic scuffs with no structural impact
How the repair works
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01
Request a consultation
Call or WhatsApp us with your model number and the problem you're seeing. An engineer reviews the issue and gives you a preliminary assessment before you travel or wait.
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02
Diagnostic and written quote
We run a full component-level diagnostic — power rails, thermal readings, display signal, input devices — and present a written scope of work with pricing before any part is ordered.
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03
Repair with OEM-grade parts
Approved work is completed using OEM-matched components. The machine is photographed before and after. All cables and connectors are re-seated to factory torque spec.
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04
Quality check and return
Every replaced part is stress-tested before sign-off. Your machine is returned in the same session or the next business day with a 30-day workmanship warranty on the repair.
Hyderabad neighborhoods we cover
Engineer dispatch reaches homes, offices, and co-working spaces across these neighborhoods. Banjara Hills, Jubilee Hills, and HiTec City (500034, 500033, 500081) are our highest-frequency service zones.
Frequently asked questions
The base cover's ventilation cutouts and material match the original spec — airflow is not compromised. We also re-apply thermal compound to the CPU and GPU as part of any disassembly that accesses the heatsink.
If the hinge boss is cracked but the chassis is otherwise sound, a targeted epoxy repair is sometimes viable. Where the mount has sheared fully, a replacement base cover gives a more durable result.
OEM base covers include the factory rubber pads. If the replacement is supplied without, we transfer the original feet or fit new ones — the machine sits flat and the underside looks factory-clean.
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Browse all Lenovo parts and services or visit the Lenovo service center — Hyderabad.
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Our engineers cover Banjara Hills, Jubilee Hills, HiTec City, Gachibowli, and 40 more Hyderabad neighborhoods.