| Model Name(s) | "1801" Code | Key Hardware (SoC) | Notes | | :--- | :--- | :--- | :--- | | | 1801 | Qualcomm Snapdragon 425 | Entry-level device; the primary subject of many bootloader unlock queries. | | Vivo X21 / X21i / X21iA | PD1801 | MediaTek (e.g., MT6771) / Qualcomm Snapdragon 660 | Mid-range phone. "PD1801" is its official model number. | | Vivo Z1 / V9 / V9 Pro | V1801A | Qualcomm Snapdragon 660 | Another series of mid-range phones sharing the same processor. |
: For devices with limited dedicated ROM support, GSIs allow you to install a modern Android version on any Project Treble-compatible device. Installation Prerequisites
, if:
Select Wipe > Advanced Wipe > Check Dalvik, System, Data, Cache > Swipe to Wipe . vivo 1801 custom rom
: For a "debloated" experience, you can manually remove system apps from the /system/app folder before building to increase performance. The Build Process : Select the build target using the lunch command.
There are several custom ROMs available for Vivo 1801, each with its own unique features and characteristics. Here are some of the most popular ones:
Before flashing, understand the landscape: | Model Name(s) | "1801" Code | Key
stopped receiving major Android updates years ago, custom ROMs can bring to your device.
Reinstall the official Vivo USB Drivers and try a different USB port/cable. Device code mismatch in script
Custom ROMs often strip away unnecessary bloatware, freeing up RAM and CPU resources. | | Vivo Z1 / V9 / V9
The , also known as the Vivo Y71 , is a budget-friendly smartphone released in 2018. While its hardware (Snapdragon 425/450) can technically support custom ROMs, the process is notoriously difficult due to Vivo's strict bootloader security. Key Challenges for Vivo 1801 Custom ROMs
Before flashing any ROM, you must complete these high-risk steps: