Crucial Warning: Match the exact model number (TA-1104, -1113, -1115, -1117, -1118, -1124, or -1125) before doing anything else — TA-1124 is a different chipset (Qualcomm, not MediaTek) from every other model number here and needs a completely different flashing tool. Within the MediaTek model numbers, match the build-family tag (ROO/PNX) and region (00CN/00WW) — `_OST`-suffixed files need Nokia's OST tool, not SP Flash Tool. No file in this archive carries a checksum, so verify the exact filename string carefully rather than relying on file size alone.
Download Firmware for Nokia 3.1 Plus 2018 (TA-1104/1113/1115/1117/1118/1124/1125)
Nokia_3.1_Plus_TA-1104_MT6762_ROO-130C-0-00CN-B04_ROM.zip
Nokia_3.1_Plus_TA-1104_MT6762_ROO-131K-0-00WW-B04_ROM.zip
Nokia_3.1_Plus_TA-1104_MT6762_ROO-2230-0-00WW-B02_600WW_190205.zip
Nokia_3.1_Plus_TA-1113_MT6762_ROO-130C-0-00CN-B04_ROM.zip
Nokia_3.1_Plus_TA-1113_MT6762_ROO-131K-0-00WW-B04_ROM.zip
Nokia_3.1_Plus_TA-1113_MT6762_ROO-2230-0-00WW-B02_600WW_190205.zip
Nokia_3.1_Plus_TA-1115_MT6762_ROO-131K-0-00WW-B04.zip
Missing the `_ROM` filename suffix the equivalent build carries on other model numbers — no evidence this reflects a different package format, most likely just an inconsistency in how this file was named.
⬇️ Download via Google DriveNokia_3.1_Plus_TA-1115_MT6762_ROO-2230-0-00WW-B02.zip
Also missing the `_ROM` suffix — see the row above.
⬇️ Download via Google DriveNokia_3.1_Plus_TA-1115_PNX-431A-0-00WW-B01_OST.zip
Same size as the PNX-530B build below but a different build string — two different OST service builds, not the same file twice.
⬇️ Download via Google DriveNokia_3.1_Plus_TA-1115_PNX-530B-0-00WW-B01_OST.zip
Same size as the PNX-431A build above but a different build string.
⬇️ Download via Google DriveNokia_3.1_Plus_TA-1115_ROO-124H-0-00WW-B06_OST.zip
The one OST-suffixed file on this model number carrying the ROO- prefix rather than PNX-.
⬇️ Download via Google DriveNokia_3.1_Plus_TA-1117_MT6762_ROO-130C-0-00CN-B04_ROM.zip
Nokia_3.1_Plus_TA-1117_MT6762_ROO-131K-0-00WW-B04_ROM.zip
Nokia_3.1_Plus_TA-1117_MT6762_ROO-2230-0-00WW-B02_600WW_190205.zip
Nokia_3.1_Plus_TA-1118_MT6762_ROO-130C-0-00CN-B04_ROM.zip
Nokia_3.1_Plus_TA-1118_MT6762_ROO-131K-0-00WW-B04_ROM.zip
Slightly smaller (1.82 GB) than the equivalent ROO-131K build on every other model number here (1.83 GB) — a minor size difference, not treated as an error.
⬇️ Download via Google DriveNokia_3.1_Plus_TA-1118_MT6762_ROO-2230-0-00WW-B02_600WW_190205.zip
Nokia_3.1_Plus_TA-1124_RHD-126E-0-00N0-B01_OST.zip
TA-1124 is a different chipset (Qualcomm SDM439) from every other model number in this archive — do not treat it as interchangeable with any ROO-prefixed MediaTek package.
⬇️ Download via Google DriveNokia_3.1_Plus_TA-1124_RHD-126H-0-00N0-B03.zip
Not `_OST`-suffixed like the other two TA-1124 rows below — treat Nokia OST Tool as your starting point for this model number and fall back to a community QFIL guide if OST Tool doesn't recognize this specific package.
⬇️ Download via Google DriveNokia_3.1_Plus_TA-1124_RHD-126N-0-00N0-B01_OST.zip
Nokia_3.1_Plus_TA-1125_MT6762_ROO-2230-0-00WW-B02_600WW_190205.zip
Nokia_3.1_Plus_TA-1125_MT6762_ROO-131K-0-00WW-B04_ROM.zip
Nokia_3.1_Plus_TA-1125_MT6762_ROO-130C-0-00CN-B04_ROM.zip
Flashing Overview for Nokia 3.1 Plus 2018 (TA-1104/1113/1115/1117/1118/1124/1125)
- Confirm your exact model number and whether it's MediaTek or Qualcomm (TA-1124 only)
- Back up your data — both flashing paths wipe userdata
- Download the package matching your exact model, build family, and region
- Use SP Flash Tool for MediaTek builds, or Nokia OST Tool for any `_OST`-suffixed package
- Verify Android version and network/SIM behavior after flashing
Expand preparation checklist for Nokia 3.1 Plus 2018 (TA-1104/1113/1115/1117/1118/1124/1125)
- Confirm the exact TA-xxxx model number from the device label, Settings > About phone, or the bootloader/download-mode screen.
- Identify whether your model number is MediaTek (every model number except TA-1124) or Qualcomm (TA-1124 only) — this determines which tool you need.
- For MediaTek models: install SP Flash Tool and a compatible MediaTek Download Agent (DA) file/driver before attempting a flash.
- For `_OST`-suffixed files: install Nokia's Online Service Tool and be prepared that some builds require Nokia service-account authentication rather than working fully offline.
- Back up any accessible user data; both flashing paths wipe userdata.
- Use a reliable USB cable and a charged battery — this device has a non-removable battery, so a mid-flash power loss carries more risk than on removable-battery devices.
Compatibility & Bootloader Notes
Reflashing stock firmware restores the system, boot, and radio images only; it does not itself change the bootloader lock state. Nokia/HMD's official unlock process is request-based through Nokia's own support/community channel rather than an instant no-token command — historically described by the community as having both a slower free path and a faster paid third-party path. Treat the Cricket-exclusive TA-1124's eligibility for that process as an open question — many US carrier-exclusive Android phones restrict or block official unlock eligibility entirely. None of this affects the standard stock SP Flash Tool or OST reflash covered on this page, neither of which requires an unlocked bootloader.
Ready to Flash This Firmware?
Full step-by-step instructions for Nokia 3.1 Plus 2018 (TA-1104/1113/1115/1117/1118/1124/1125), including prerequisites, error fixes, and screenshots, are on FlashGuideHub's SP Flash Tool guide.
Can also be flashed via OST Tool (Nokia/HMD): Open OST Tool (Nokia/HMD) Guide →
Frequently Asked Questions
Check the model number in Settings > About phone (look for "TA-" followed by four digits), then compare it against the seven model numbers covered here. Six are MediaTek MT6762; TA-1124 is a different chipset (Qualcomm Snapdragon 439) and needs different tools entirely.
Look at the build-family tag and region together, not just the model number: within one model number, an `00CN` row is China-specific and an `00WW` row is worldwide — they're different builds for different markets, not alternates of the same one. TA-1115 additionally has two `PNX-` builds (431A and 530B) at the same file size — those are two different OST service builds, not one file listed twice.
It's genuinely different hardware — the Cricket Wireless (US carrier-exclusive) SKU uses a Qualcomm Snapdragon 439 chipset instead of the MediaTek MT6762 chipset every other model number in this archive uses. That's why its filenames use a different build-family prefix (RHD- instead of ROO-) and never mention MT6762.
None was supplied in the source list for any of the 23 files. Verify the exact filename string (model number, build family, region tag) carefully before flashing rather than relying on file size alone, since several builds are close in size.