Vivo Nex PD1821
Vivo Nex PD1821 is a Vivo firmware file listed under Vivo, distributed as Vivo_Nex_PD1821_A_1.21.10_LA.UM.7.3.r1-02500_SDM845_QPST.zip with a download size of 6 GB. It is built for the Qualcomm SDM845 chipset. It is flashed with QFIL (part of Qualcomm QPST). It was published on June 16, 2026. This page has been viewed 23 times. It is available to download free of charge. Before flashing, verify the file matches your exact device model and back up your data.
About Vivo Nex PD1821
Sometimes a clean firmware install is the best fix for a misbehaving phone. For Vivo Nex PD1821 owners, this page hosts the original Vivo stock ROM and the key file details. It fixes random reboots, crashing apps, a phone stuck on the splash screen, or a botched OTA update, and removes leftover bloat by returning the Vivo Nex PD1821 to factory condition. File Name: Vivo_Nex_PD1821_A_1.21.10_LA.UM.7.3.r1-02500_SDM845_QPST.zip File Size: 6 GB Before flashing, back up your data (the process wipes the device), charge above 50 percent, and install the correct USB drivers on your computer. Once installed, your Vivo Nex PD1821 should boot up like new. Use the right file for your exact model and don't interrupt the process.
File Details
| File name | Vivo Nex PD1821 |
|---|---|
| Package | Vivo_Nex_PD1821_A_1.21.10_LA.UM.7.3.r1-02500_SDM845_QPST.zip |
| Brand / Platform | Vivo |
| Category | Vivo |
| Chipset | Qualcomm SDM845 |
| Flash tool | QFIL (part of Qualcomm QPST) |
| Package format | ZIP archive |
| File size | 6 GB |
| Date added | June 16, 2026 |
| Price | Free |
How to flash Vivo Nex PD1821 with QFIL
- Confirm Vivo Nex PD1821 matches your exact device model and that the phone uses the SDM845 chipset.
- Back up your personal data, as flashing firmware can erase the device. Charge the battery above 50%.
- Download the file (6 GB) using the button above and extract it on a Windows PC.
- Install the Qualcomm HS-USB QDLoader 9008 driver, then open QFIL (part of Qualcomm QPST).
- In the tool, load the programmer (prog_*_firehose*.mbn/.elf) and rawprogram/patch XML files from the extracted folder.
- Start the flash, then boot the phone into EDL mode (9008) — usually via key combo, test point, or "adb reboot edl".
- Wait for the success message before disconnecting. QFIL must detect "Qualcomm HS-USB QDLoader 9008" before you press Download.
Guides for this firmware
- Vivo Firmware Guide: Finding and Flashing Stock ROMsTo reflash or unbrick a Vivo device, you must identify the specific chipset used by your model and use the corresponding flashing tool. By downloading the correct stock ROM and following the…
- How to Get Qualcomm Phones into EDL Mode for QFILTo get a Qualcomm-based phone into EDL (Emergency Download) mode for QFIL, you must trigger a specific boot state that allows the device to be recognized by your PC as a "Qualcomm HS-USB QDLoader…
- How to Fix QFIL Sahara Fail ErrorThe Sahara Fail error in QFIL occurs when the initial communication between the computer and the Qualcomm device fails. This prevents the tool from uploading the Firehose programmer, which is…
Frequently asked questions
Is Vivo Nex PD1821 free to download?
Yes, Vivo Nex PD1821 can be downloaded free of charge from this page.
How large is the download?
The Vivo Nex PD1821 package is 6 GB.
Which tool do I need to flash Vivo Nex PD1821?
Vivo Nex PD1821 is Qualcomm SDM845 firmware, so it is flashed with QFIL (part of Qualcomm QPST) using the programmer (prog_*_firehose*.mbn/.elf) and rawprogram/patch XML files.
Which devices is this firmware for?
This file is intended for Vivo devices. Always confirm it matches your specific model before flashing.