MT6186MV IC
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Product Details
Product Details:
- Part Number: MT6186MV (Related Family Variant: MT6186W)
- Manufacturer: MediaTek Inc. (MTK)
- Function: Multi-Band Multi-Mode 4G LTE / 5G Sub-6 RF Transceiver / Baseband Intermediate Frequency (IF) IC
- Companion Processor / Modem Platforms:
* MediaTek Helio G90T (MT6785)
* MediaTek Dimensity 700 / Dimensity 720 (MT6833 / MT6853)
* MediaTek Helio G80 / G85 / G88 (MT6769 Series)
* Typically paired with Master PMIC MT6358W / MT6359 and Sub-PMIC MT6360RP
- Internal RF Subsystems & Capabilities:
* Direct-conversion RF down-conversion (RX) and up-conversion (TX)
* Integrated multi-channel Low Noise Amplifiers (LNAs), active mixers, and baseband analog filters
* Cellular Carrier Aggregation (CA) and multi-antenna diversity support
* High-speed differential digital I/Q interface directly communicating with the baseband modem
* 26 MHz TCXO reference frequency synchronization
- Package Type: Compact BGA (Ball Grid Array)
- Stencil Compatibility: Amaoe MT Series / Universal MediaTek RF Transceiver BGA Stencil (0.12mm)
- Recommended Solder Paste: 183°C Leaded Solder Paste
Usage:
- Circuit Function:
* Serves as the primary RF interface between the cellular antenna front-end modules (Power Amplifiers / Duplexers) and the digital processor baseband modem.
- Compatible Smartphone Models:
* Xiaomi / Redmi / POCO:
- Redmi Note 8 Pro (Begonia - Helio G90T)
- Redmi Note 10 5G / POCO M3 Pro 5G (Dimensity 700)
- Redmi 10X 4G, Redmi Note 9, Redmi 9T
* Samsung:
- Galaxy A22 5G (SM-A226B) / Galaxy A32 5G (MediaTek Dimensity variants)
* Realme / Oppo:
- Realme 6, Realme 7, Realme 8 5G; Oppo Reno series (MTK variants)
* Vivo / Infinix / Tecno:
- Infinix Note 8, Note 10, Zero 8; Tecno Camon 16 series
- Common Motherboard Fault Symptoms & Diagnosis:
* "No Service" / "Searching..." with Healthy Baseband & IMEI:
- IMEI and Baseband firmware are present in settings, but the device displays "No Service" or searches indefinitely without latching onto local telecom operators.
* "Emergency Calls Only":
- Phone can detect network broadcast carriers, but transmit handshake fails due to a damaged TX up-conversion stage inside MT6186MV.
* 2G Works, but No 4G LTE / 5G Data:
- Handset successfully connects to 2G GSM for standard calls, but fails to register on high-frequency LTE or 5G bands.
* Secondary Line Power Leakage / Short:
- Short circuit or micro-leakage on VIO 1.8V, VRF, or auxiliary LDO supply rails surrounding the transceiver, resulting in battery drain or dead phone symptoms.
* Physical Drop / Cold Solder Joints:
- Handset loses network connectivity following a mechanical drop; resolved by desoldering, reballing, and resoldering MT6186MV.
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