MT6186W IC

Product Details
Product Details:

- Part Number: MT6186W (Related Variant / Marking: MT6186MV / MT6186)

- Manufacturer: MediaTek Inc. (MTK)

- Function: Multi-Band Multi-Mode RF Transceiver / Intermediate Frequency (IF) Processor IC

- Target Processor Architectures:

* MediaTek Helio & Dimensity Series Platforms

* Often paired alongside primary master PMICs (such as MT6358W, MT6359, or MT6360)

- Core Subsystems & Capabilities:

* Multi-channel RF intermediate frequency (IF) down-conversion and up-conversion

* Integrated low-noise amplifiers (LNAs), active bandpass filters, and high-linearity mixers

* Multi-input diversity paths supporting cellular carrier aggregation (CA)

* Dedicated digital baseband interface linking directly to the modem core

* High-precision local oscillator (LO) support driven by external TCXO reference clock

- Package Type: BGA (Ball Grid Array)

- Stencil Compatibility: Amaoe MT Series / Universal MTK RF Transceiver BGA Stencil (0.12mm)

- Recommended Solder Paste: 183°C Leaded Solder Paste

Usage:

- Circuit Function:

* Converts high-frequency radio waves received by the antenna into baseband I/Q signals for digital processing, and up-converts baseband transmissions into RF for the power amplifier.

- Compatible Smartphone Brands & Platforms:

* Xiaomi / Redmi: Redmi Note 9 / 10 series variants, Redmi K20 / K30 series platforms

* Oppo / Realme: Various mid-range MediaTek LTE / 5G smartphones

* Vivo: Selected Y-series and V-series MediaTek-based models

* Infinix / Tecno: MediaTek Helio G-series and P-series motherboard layouts

* Samsung: Selected MediaTek-powered Galaxy A-series models

- Common Motherboard Fault Symptoms & Diagnosis:

* "No Service" / "Searching..." with Intact Baseband:

- Baseband firmware version and IMEI numbers are intact in settings, but the handset fails to register on cellular networks or manual network scan returns an error.

* "Emergency Calls Only":

- Phone can sense network presence but fails bidirectional authentication due to a compromised transmit (TX) IF path inside MT6186W.

* Secondary Line Power Leakage / Short Circuit:

- Short circuit or micro-leakage on VIO 1.8V, VRF, or auxiliary LDO supply rails around the IC, causing abnormal battery drain or dead phone symptoms.

* Dry Joints / Solder Ball Damage After Impact:

- Handset loses network connectivity following a physical drop, typically resolved by lifting, reballing, and resoldering MT6186W.