MT6177W IC

Product Details
Product Details:

- Part Number: MT6177W (Related Marking / Variant: MT6177MV / MT6177)

- Manufacturer: MediaTek Inc. (MTK)

- Function: Multi-Band Multi-Mode 4G LTE / 3G WCDMA / 2G GSM Radio Frequency (RF) Transceiver

- Companion Processor Platforms (SoCs):

* MediaTek Helio A22 (MT6761) / Helio P22 (MT6762) / Helio P35 (MT6765)

* MediaTek Helio G25 / G35 (MT6762G)

* MediaTek Helio G70 / G80 / G85 (MT6768 / MT6769)

* Often paired alongside primary PMICs: MT6357CRV / MT6358W

- Internal RF Subsystems & Capabilities:

* Direct-conversion RF transceiver architecture for multi-band FDD-LTE and TDD-LTE

* Integrated low-noise amplifiers (LNAs), mixers, baseband filters, and analog-to-digital (ADC) / digital-to-analog (DAC) converters

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

* Precision local oscillator (LO) generation driven by 26 MHz TCXO reference crystal

* Dedicated digital interface connecting directly to the MediaTek modem baseband

- Package Type: Compact BGA (Ball Grid Array)

- Stencil Compatibility: Amaoe Universal MTK RF Series / Amaoe MT3 Stencil (0.12mm)

- Recommended Solder Paste: 183°C Leaded Solder Paste

Usage:

- Circuit Board Function:

* Acts as the bridge between the RF Front-End (Antenna switches, diplexers, Power Amplifiers like 77643/77912) and the digital processor.

* Handles reception down-conversion (RF to Baseband I/Q) and transmission up-conversion (Baseband I/Q to RF).

- Compatible Smartphone Models:

* Xiaomi / Redmi: Redmi 6, Redmi 6A, Redmi 9, Redmi 9A, Redmi 9C, Redmi 10X 4G, Redmi Note 9

* Samsung: Galaxy A32 4G (SM-A325F), Galaxy A31 (SM-A315F), Galaxy A22 4G (SM-A225F), Galaxy A12 (SM-A125F MTK)

* Oppo / Realme: Oppo A12, Oppo A15, Oppo A31, Oppo A73s, Oppo A9 (2020 MTK); Realme C2, Realme C3, Realme C11, Realme C12, Realme C15

* Vivo: Vivo Y11 (MTK), Vivo Y12, Vivo Y15, Vivo Y17, Vivo Y91, Vivo Y93, Vivo Y95 (MTK), Vivo Y97

* Infinix / Tecno: Infinix Hot 9, Hot 10 Play, Smart 5; Tecno Spark 6 Go, Spark 7, Camon 15

- Motherboard Diagnostics & Repair Faults:

* "No Service" / "Searching..." with Valid Baseband & IMEI:

- Baseband version and IMEI appear correctly in device settings, but manual network scan yields "Error searching for networks" or finds 0 operators.

* "Emergency Calls Only":

- Transceiver fails to complete handshake with local telecom base stations due to missing RF receive clock or damaged internal LNA.

* 2G Works, but No 4G LTE:

- Phone can make ordinary phone calls on GSM/2G, but cannot register on 4G LTE mobile data bands.

* Secondary Supply Short / Leakage:

- Short circuit or micro-leakage on the 1.8V VIO, 1.2V DVDD, or VRF supply rails around MT6177W, leading to battery drain or power-on failure.

* Physical Drop Damage:

- Broken solder balls underneath MT6177W following a heavy drop, usually resolved by desoldering, reballing, and resoldering the IC.