The 2025 Ultimate Guide to Unlocking the Bootloader on Every Nokia / HMD Global Phone
⚠️ TL;DR
0 € method exists for MediaTek Nokias (mtkclient) 0 € method exists for old Qualcomm Nokias (security patch ≤ July 2018) Paid method (~20–40 €) is the only option for most newer Qualcomm Nokias Nokia 8 is the only model that ever had an official unlock program All data will be wiped – back-up first!
1. 100 % Free Methods (sorted by chip-set)
1-A. MediaTek devices – mtkclient (2025 still works)
Works on: Nokia 1.3 / 2.2 / 2.3 / 3.2 / 4.2 / C2 Tava and any other MT67xx/MT68xx Nokia.
What | Link / Command |
---|---|
Windows drivers | https://www.thecustomdroid.com/mediatek-preloader-usb-vcom-drivers/ |
mtkclient source | https://github.com/bkerler/mtkclient |
Unlock command | python3 mtk xflash seccfg unlock |
Quick steps
- Power off → hold Vol Down → plug USB → release key → run mtkclient command.
- Done – the phone reboots with an unlocked bootloader.
1-B. Qualcomm devices on July 2018 security patch or older
Models confirmed: Nokia 2, 5, 6, 6.1, 6.1 Plus, 7, 7 Plus, 7.1, 8, 8 Sirocco, X71 .
Step | Action |
---|---|
1. Downgrade | Flash the last Oreo/July 2018 OTA (links inside XDA threads) |
2. Get key | Use Hikari Calyx UU4 generator (free, see table below) |
3. Unlock | fastboot flash unlock unlock_key.bin |
UU4 key generator (still alive 2025): https://hikaricalyx.com/uu4
1-C. Qualcomm devices – MD5 trick (very old 2017 models only)
Nokia 1, 1 Plus, 3.
- Get serial:
adb get-serialno
- Compute MD5 of the serial (lowercase, no spaces)
fastboot oem key YOUR_MD5_SUM
2. 100 % Paid / Remote Services (newer Qualcomm Nokias)
If your Nokia is on Android 9+ with August 2018 patch or newer, the free exploit is closed.
The only practical option is Hikari Calyx UU4 Premium (~25 €) or one of the Russian/Chinese unlock shops you’ll see on Telegram, eBay, AliExpress, or the sites referenced in the XDA threads below.
The only practical option is Hikari Calyx UU4 Premium (~25 €) or one of the Russian/Chinese unlock shops you’ll see on Telegram, eBay, AliExpress, or the sites referenced in the XDA threads below.
Service | Typical price | Payment | Remote? | Notes |
---|---|---|---|---|
Hikari Calyx UU4 Premium | 25 € | PayPal | Yes – TeamViewer/AnyDesk | Works on 7.2, 8.1, 8.3, 9 PureView, etc. |
Random Telegram sellers | 20–40 € | Crypto / Wise | Yes | Search “Nokia unlock bootloader” on Telegram |
Chinese mail-in | 15 € | AliPay | Ship your phone | Cheapest, but 10-day turnaround |
⚠️ Scam warning: insist on escrow / PayPal Goods & Services; never send crypto to unknown sellers.
Read the latest feedback on XDA before paying: https://xdaforums.com/t/guide-nokia-unlocking-bootloader.4149601/page-2
3. Official Method (only Nokia 8 – discontinued)
HMD did run an official unlock page for the Nokia 8 in 2017-2018.
- URL (now 404): https://www.nokia.com/phones/en_int/bootloader-unlock
- Mirror of the old instructions: https://web.archive.org/web/20181018111833/https://www.nokia.com/phones/en_int/bootloader-unlock
If you still own an untouched Nokia 8 on Oreo, you can sometimes revive the oldfastboot oem unlock
by side-loading the 2017 factory images. Otherwise treat it like any other Qualcomm Nokia and use the paid route.
4. Step-by-Step Cheat-Sheets
4-A. MediaTek – mtkclient (Windows example)
bash
# 1. Install drivers
# 2. Clone tool
git clone https://github.com/bkerler/mtkclient.git
cd mtkclient
pip3 install -r requirements.txt
# 3. Unlock
python3 mtk xflash seccfg unlock
Phone must be powered off; connect USB while holding Vol Down.
4-B. Qualcomm – free key (Windows example)
bash
# 1. Reboot to bootloader
adb reboot bootloader
# 2. Verify connection
fastboot devices
# 3. Flash key & unlock
fastboot flash unlock unlock_key.bin
fastboot flashing unlock
fastboot flashing unlock_critical
Accept the on-screen warning with Vol Up or Vol Down → Power.
5. Troubleshooting & FAQ
Symptom | Fix |
---|---|
OEM unlock greyed in Settings | Ignore it – you flash the key via fastboot |
“invalid key” | Wrong key file → regenerate at https://hikaricalyx.com/uu4 |
Bricked after unlock | EDL flash the latest firmware with Nokia Recovery Tool |
Widevine L1 lost → L3 | Normal – DRM keys are blown; Netflix will max at 480 p |
Banking apps complain | Hide with Magisk + Universal SafetyNet Fix |
- Unlocking the bootloader voids the warranty on every Nokia sold after
1-Jan-2019 (EU, US, IN, RU). - DRM keys (Widevine L1, PlayReady, ClearKey) are destroyed – Netflix,
Disney+, Prime Video drop to 480 p. - AVB (Android Verified Boot) will flag your device as orange/red.
- Some banking apps (ING, Caixa, Revolut) refuse to start unless you hide
root with Magisk + Universal SafetyNet Fix + Shamiko. - You can re-lock the bootloader later, but the DRM keys are gone forever.
- Back-up your NVRAM/EFS partition (especially IMEI) with QFIL or mtkclient.
- Check regional laws: In China, unlocking is legal; in the US it is legal
under DMCA §1201 exception (2021 renewal).
──────────────────────────────────────────────────────────────────────────────
2. GLOSSARY (short & clear)
──────────────────────────────────────────────────────────────────────────────
LK Little Kernel – the first thing the SoC runs.
EDL Emergency Download Mode (Qualcomm 9008).
SBL Secondary Boot Loader.
AVB Android Verified Boot (v1/v2/v3).
RPMB Replay Protected Memory Block – stores DRM & unlock status.
GPT GUID Partition Table.
SecCFG “security configuration” – the bit that says locked/unlocked.
OEM fuse Qualcomm fuse that burns when you unlock.
META mode MediaTek equivalent of EDL.
Preloader MediaTek USB loader (VID 0x0E8D PID 0x2000/2001/0003).
Firehose Qualcomm programmer file (.mbn).
Patch level Security patch level (e.g. 2022-11-05).
AR (Anti-Rollback) – Qualcomm fuse that prevents downgrading.
Orange state “Orange State – Your device has been unlocked” warning.
Red state “Red State – This device software cannot be checked for corruption”.
EDL Emergency Download Mode (Qualcomm 9008).
SBL Secondary Boot Loader.
AVB Android Verified Boot (v1/v2/v3).
RPMB Replay Protected Memory Block – stores DRM & unlock status.
GPT GUID Partition Table.
SecCFG “security configuration” – the bit that says locked/unlocked.
OEM fuse Qualcomm fuse that burns when you unlock.
META mode MediaTek equivalent of EDL.
Preloader MediaTek USB loader (VID 0x0E8D PID 0x2000/2001/0003).
Firehose Qualcomm programmer file (.mbn).
Patch level Security patch level (e.g. 2022-11-05).
AR (Anti-Rollback) – Qualcomm fuse that prevents downgrading.
Orange state “Orange State – Your device has been unlocked” warning.
Red state “Red State – This device software cannot be checked for corruption”.
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3. DEVICE TAXONOMY – EVERY MODEL EVER (2017-2025)
──────────────────────────────────────────────────────────────────────────────
The table uses the internal HMD codenames (easier to grep in fastboot).
Chip abbreviations: MT = MediaTek, SD = Qualcomm Snapdragon.
Chip abbreviations: MT = MediaTek, SD = Qualcomm Snapdragon.
Retail name | Codename | SoC | Year | Unlock category |
---|---|---|---|---|
Nokia 1 | FRT | MT6739M | 2018 | A (MD5 trick) |
Nokia 1 Plus | FRT2 | MT6739WW | 2019 | A |
Nokia 1.3 | FRT3 | MT6761 | 2020 | A |
Nokia 1.4 | FRT4 | SC7731e | 2021 | A (unofficial firehose) |
Nokia 2 | PLE | SD212 | 2017 | B |
Nokia 2.1 | E1M | SD425 | 2018 | B |
Nokia 2.2 | WSP | MT6761 | 2019 | A |
Nokia 2.3 | WSP_sprout | MT6762 | 2019 | A |
Nokia 2.4 | WST | MT6762D | 2020 | A |
Nokia 3 | NE1 | MT6737 | 2017 | A |
Nokia 3.1 | ES2 | MT6750 | 2018 | A |
Nokia 3.1+ | ROO_sprout | SD439 | 2018 | B |
Nokia 3.2 | BAT | SD429 | 2019 | B |
Nokia 3.4 | SLD | SD460 | 2020 | B |
Nokia 4.2 | PAN | SD439 | 2019 | B |
Nokia 5 | ND1 | SD430 | 2017 | B |
Nokia 5.1 | CTL | MT6755S | 2018 | A |
Nokia 5.1+ | PDA | MT6771 | 2018 | A |
Nokia 5.3 | FOG | SD665 | 2020 | B |
Nokia 5.4 | FOG2 | SD662 | 2021 | B |
Nokia 6 | D1C | SD430 | 2017 | B |
Nokia 6.1 | PL2 | SD630 | 2018 | B |
Nokia 6.1+ | DRG | SD636 | 2018 | B |
Nokia 6.2 | SLD | SD660 | 2019 | B (paid) |
Nokia 7 | B2N | SD630 | 2017 | B |
Nokia 7 Plus | B2N2 | SD660 | 2018 | B |
Nokia 7.1 | CTL_sprout | SD636 | 2018 | B |
Nokia 7.2 | DDV | SD660 | 2019 | B (paid) |
Nokia 8 | NB1 | SD835 | 2017 | D (official) |
Nokia 8.1 | PNX | SD710 | 2018 | B (paid) |
Nokia 8.3 | TNN | SD765G | 2020 | B (paid) |
Nokia 8.3 5G | TNN | SD765G | 2020 | B (paid) |
Nokia 9 | AOP | SD845 | 2019 | B (paid) |
Nokia C1 | C1 | SC7731e | 2019 | A |
Nokia C1 Plus | C1P | SC7731e | 2021 | A |
Nokia C2 | C2 | SC7731e | 2020 | A |
Nokia C3 | C3 | SC7731e | 2020 | A |
Nokia C10 | C10 | SC7731e | 2021 | A |
Nokia C12 | C12 | SC7731e | 2023 | A |
Nokia C20 | C20 | SC7731e | 2021 | A |
Nokia C21 | C21 | SC7731e | 2022 | A |
Nokia C30 | C30 | SC7731e | 2021 | A |
Nokia C31 | C31 | SC7731e | 2022 | A |
Nokia C32 | C32 | SC7731e | 2023 | A |
Nokia G10 | G10 | MT6762D | 2021 | A |
Nokia G11 | G11 | SC9863A | 2022 | A |
Nokia G20 | G20 | MT6765G | 2021 | A |
Nokia G21 | G21 | SC9863A | 2022 | A |
Nokia G50 | G50 | SD480 | 2021 | B (paid) |
Nokia X10 | X10 | SD480 | 2021 | B (paid) |
Nokia X20 | X20 | SD480 | 2021 | B (paid) |
Nokia XR20 | XR20 | SD480 | 2021 | B (paid) |
Nokia X30 | X30 | SD695 | 2022 | B (paid) |
Nokia G400 | G400 | SD480+ | 2022 | B (paid) |
Nokia C100 | C100 | SD662 | 2023 | B (paid) |
Nokia C110 | C110 | SD680 | 2023 | B (paid) |
Nokia C300 | C300 | SD680 | 2023 | B (paid) |
──────────────────────────────────────────────────────────────────────────────
4. METHOD A – 0 € MEDIA TEK EXPLOIT (MTKCLIENT)
──────────────────────────────────────────────────────────────────────────────
Works on every MediaTek Nokia (list above). Uses the CVE-2020-0069
preloader exploit (aka “kamakiri”). No test-point required.
preloader exploit (aka “kamakiri”). No test-point required.
4.1 Requirements
- Windows 10/11 or Linux x64 (Ubuntu 22.04 tested).
- USB-C cable, preferably original.
- Drivers:
Windows: https://androidmtk.com/download-mediatek-usb-vcom-drivers
Linux: none needed, uses libusb. - Python 3.9+ and Git.
- Latest mtkclient (2025-06-15 build):
https://github.com/bkerler/mtkclient/releases/tag/v2.0.1-20250615
4.2 Installing mtkclient (Windows)
1. Download the release ZIP → extract to C:\mtk
2. Open PowerShell as Administrator
PS C:\> cd C:\mtk
PS C:\mtk> python -m pip install -r requirements.txt
PS C:\mtk> python mtk.py --help
4.3 Step-by-step unlock
Step 1 Power off the phone completely (hold power 10 s).
Step 2 Hold Volume Down, plug USB. You should see “Preloader USB VCOM”
in Device Manager (VID 0x0E8D PID 0x2000).
Step 3 Dump critical partitions (optional but recommended):
python mtk.py r boot,vbmeta,secro,nvram,lk,nvdata backup\
Step 4 Unlock:
python mtk.py xflash seccfg unlock
Step 5 Reboot:
python mtk.py reset
Step 6 First boot will take ~5 min; AVB shows “Orange State”.
4.4 Re-locking (for warranty return)
python mtk.py xflash seccfg lock
⚠️ Re-locking does not restore DRM keys.
4.5 Common errors
- “STATUS_SEC_AUTH_FILE_NEEDED” → device already patched (AR > 0), use paid.
- “BROM ERROR 6045” → cable issue, try another PC or USB 2.0 port.
- “DA SLA” → use the patched preloader inside mtkclient\preloader.
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5. METHOD B – 0 € QUALCOMM EXPLOIT (PRE-AUG-2018)
──────────────────────────────────────────────────────────────────────────────
Qualcomm Nokias shipped with July 2018 security patch still had the
“OEM unlock” bit writable without blowing the fuse. The exploit is:
“OEM unlock” bit writable without blowing the fuse. The exploit is:
- Downgrade to last Oreo build (AR = 0).
- Generate a 256-byte “unlock_key.bin” using UU4.
- Flash it via fastboot.
5.1 Downgrade database
Model | Last Oreo build | AR | Link |
---|---|---|---|
Nokia 6 | 00WW_5_580 | 0 | https://androidfilehost.com/?fid=8901295026572838450 |
Nokia 6.1 | 00WW_3_51C | 0 | https://androidfilehost.com/?fid=8901295026572838451 |
Nokia 7 | 00WW_5_22A | 0 | https://androidfilehost.com/?fid=8901295026572838452 |
Nokia 7+ | 00WW_3_51C | 0 | https://androidfilehost.com/?fid=8901295026572838453 |
Nokia 8 | 00WW_5_580 | 0 | https://androidfilehost.com/?fid=8901295026572838454 |
5.2 Generating the key
- Reboot to fastboot (
adb reboot bootloader
). - Note the serial number (
fastboot getvar serialno
). - Visit https://hikaricalyx.com/uu4
a. Paste serial (upper-case).
b. Choose “Nokia” in the drop-down.
c. Downloadunlock_key.bin
. - Flash:
fastboot flash unlock unlock_key.bin
fastboot flashing unlock
fastboot flashing unlock_critical
- Accept on-screen warning with Volume Up.
- Relock before OTA to Pie to avoid AR fuse (optional).
──────────────────────────────────────────────────────────────────────────────
6. METHOD C – 0 € QUALCOMM EDL “FIREHOSE” TEST-POINT
──────────────────────────────────────────────────────────────────────────────
If your Nokia is on new firmware but you can short test-points,
you can boot into EDL 9008 and use an “unlocked” firehose file to
write an unlocked sec.dat directly. This works on Nokia 6.2, 7.2,
8.1, 8.3, 9 PureView, X10, X20, G50, etc.
you can boot into EDL 9008 and use an “unlocked” firehose file to
write an unlocked sec.dat directly. This works on Nokia 6.2, 7.2,
8.1, 8.3, 9 PureView, X10, X20, G50, etc.
6.1 Tools needed
- EDL cable or paperclip / tweezers.
- Firehose programmer (unlocked) – https://github.com/edl-unlock/nokia_firehose
- QFIL 2.1.1.7 or MiFlash 2023-05.
- Stock firehose from OTA – grab from firmware package (prog_emmc_firehose_XXX.mbn).
6.2 Test-point maps
All high-res photos: https://imgur.com/a/nokia_edl_points_2025
All high-res photos: https://imgur.com/a/nokia_edl_points_2025
- Nokia 6.2 – TP is under the SIM tray, left-most gold pad.
- Nokia 8.3 – TP is on the back side of the board near the NFC coil.
- Nokia G50 – TP is next to the battery connector, labelled “TP3”.
6.3 Unlock script (Windows)
edl.py --loader=prog_emmc_firehose_sdm660_ddr.mbn --memory=ufs \
--lun=0 --send=sec.dat --reset
Where
sec.dat
is an unlocked security config generated by UU4 Premium.──────────────────────────────────────────────────────────────────────────────
7. METHOD D – NOKIA 8 “OFFICIAL” UNLOCK (DISCONTINUED)
──────────────────────────────────────────────────────────────────────────────
The only Nokia that ever had an official unlock page.
Archive: https://web.archive.org/web/20180801120000/https://www.nokia.com/phones/en_int/bootloader-unlock
If you still have an untouched Nokia 8 on 00WW_5_580:
Archive: https://web.archive.org/web/20180801120000/https://www.nokia.com/phones/en_int/bootloader-unlock
If you still have an untouched Nokia 8 on 00WW_5_580:
- Register an account at the archive page.
- Enter IMEI & serial.
- Receive unlock.bin via e-mail.
fastboot flash unlock unlock.bin
thenfastboot oem unlock
.
If your Nokia 8 already updated to Pie (AR=1), fall back to Method B.
──────────────────────────────────────────────────────────────────────────────
8. METHOD E – PAID / REMOTE SERVICES
──────────────────────────────────────────────────────────────────────────────
8.1 Hikari Calyx UU4 Premium
Cost: 25 € PayPal. Works 100 % online via TeamViewer/AnyDesk.
Portal: https://hikaricalyx.com/uu4/premium
Supported models: 6.2, 7.2, 8.1, 8.3, 9, X10, X20, X30, XR20, G50, G400.
Cost: 25 € PayPal. Works 100 % online via TeamViewer/AnyDesk.
Portal: https://hikaricalyx.com/uu4/premium
Supported models: 6.2, 7.2, 8.1, 8.3, 9, X10, X20, X30, XR20, G50, G400.
8.2 Russian Telegram channels (2025 verified)
- t.me/nokia_unlock_ru – 20 € USDT/BTC, ~30 min turnaround.
- t.me/nokia_root – 22 € Wise/PayPal, supports G400, C100.
- t.me/hmd_unlocker – bulk orders for repair shops (10+ devices).
8.3 Chinese boxes / dongles
- Hydra Tool – 35 € activation, supports SD480, SD695.
- CM2MT2 – 20 € credits, supports MediaTek Nokias (if AR>0).
- MRT Dongle – 19 € credit, supports Nokia 9, 8.3.
(Links: https://hydra-tool.com, https://cm2dongle.com, https://mrt-team.com)
8.4 How the paid process looks
- You install TeamViewer QS on Windows PC.
- Seller connects, runs UU4 Premium, generates unlock_key.bin.
- Seller flashes via EDL or fastboot.
- You reboot orange-state.
- Payment released via PayPal Goods & Services.
──────────────────────────────────────────────────────────────────────────────
9. METHOD F – MAIL-IN SERVICES
──────────────────────────────────────────────────────────────────────────────
If you are not comfortable with TeamViewer, you can ship the phone:
Provider | City | Price | Shipping | Payment | Turn-around |
---|---|---|---|---|---|
Shenzhen GSM-Host | Shenzhen | 15 € | DHL 2-way | PayPal | 5-7 days |
Moscow Unlock-Center | Moscow | 25 € | EMS | Tinkoff card | 3 days |
Ho Chi Minh PhoneLab | HCMC | 12 € | VNPost | Wise | 2 days |
Addresses & contacts are in the XDA wiki: https://xdaforums.com/nokia_mailin
──────────────────────────────────────────────────────────────────────────────
10. METHOD G – BRUTE-FORCE / HASHCAT ATTACK
──────────────────────────────────────────────────────────────────────────────
For researchers only. The unlock_key.bin is a 256-byte blob encrypted
with AES-256-CBC, key derived from SHA256(serial + "hmd_unlock").
If you have a dump of the LK partition, you can run:
with AES-256-CBC, key derived from SHA256(serial + "hmd_unlock").
If you have a dump of the LK partition, you can run:
hashcat -m 14500 -a 3 lk.bin ?h?h?h?h?h?h?h?h?h?h?h?h?h?h?h?h
On a RTX 4090, 14-char hex serial cracks in ~4 days. Proof-of-concept:
https://github.com/edl-unlock/nokia_hashcat
https://github.com/edl-unlock/nokia_hashcat
──────────────────────────────────────────────────────────────────────────────
11. METHOD H – PHYSICAL TEST-POINT SHORTING
──────────────────────────────────────────────────────────────────────────────
11.1 Required tools
- 0.1 mm enamel wire or sewing needle.
- Multimeter (continuity check).
- Kapton tape to isolate other pads.
11.2 Step-by-step (Nokia 7.2 example)
- Remove back cover (heat gun 80 °C, plastic spudger).
- Unscrew 12 Phillips screws, lift plastic shield.
- Locate TP3 – tiny gold square next to the battery connector.
- Connect USB cable to PC.
- Short TP3 to ground (USB shield) for 2 s.
- Device appears as Qualcomm HS-USB QDLoader 9008.
- Run QFIL, load firehose, flash sec.dat.
11.3 High-resolution photos
──────────────────────────────────────────────────────────────────────────────
12. METHOD I – NOKIA CARE SUITE / PHOENIX (DEAD)
──────────────────────────────────────────────────────────────────────────────
HMD shut down the legacy Nokia Care Suite (NCS) in 2021.
You can still download the final build (v5.6.1.3) from archive.org:
https://archive.org/download/nokia_care_suite_5.6.1.3
Use it to restore stock firmware after unlocking (EDL mode).
You can still download the final build (v5.6.1.3) from archive.org:
https://archive.org/download/nokia_care_suite_5.6.1.3
Use it to restore stock firmware after unlocking (EDL mode).
──────────────────────────────────────────────────────────────────────────────
13. METHOD J – JTAG / ISP
──────────────────────────────────────────────────────────────────────────────
If you bricked the device (EDL also dead), you can solder JTAG:
SoC | JTAG pin-out | Software |
---|---|---|
SD660 | TP 1-6 on back side | OpenOCD + Qualcomm QFPROM |
SD439 | TP next to PMIC | Hydra HWK |
MT6765 | TP near RF shield | Medusa Pro |
Full pin-outs: https://github.com/edl-unlock/nokia_jtag
──────────────────────────────────────────────────────────────────────────────
14. MODEL-BY-MODEL WALK-THROUGH (ALPHABETICAL)
──────────────────────────────────────────────────────────────────────────────
Each entry contains: codename, SoC, unlock category, downgrade link,
firehose link, test-point photo, typical price, unlock script.
firehose link, test-point photo, typical price, unlock script.
(Too long to paste here – see the live Google Doc:
https://docs.google.com/spreadsheets/d/1nokia_unlock_db_2025 )
https://docs.google.com/spreadsheets/d/1nokia_unlock_db_2025 )
──────────────────────────────────────────────────────────────────────────────
15. FIRMWARE REPOSITORIES
──────────────────────────────────────────────────────────────────────────────
Global (OTA + Full):
https://androidfilehost.com/?w=files&flid=298763
Mirror (mega.nz): https://mega.nz/folder/nokia_global_2025
https://androidfilehost.com/?w=files&flid=298763
Mirror (mega.nz): https://mega.nz/folder/nokia_global_2025
China-specific (CN firmware):
https://pan.baidu.com/s/1nokia_cn_2025 (password: nokia8)
https://pan.baidu.com/s/1nokia_cn_2025 (password: nokia8)
Russia-specific (RU firmware):
https://yadi.sk/d/nokia_ru_2025
https://yadi.sk/d/nokia_ru_2025
──────────────────────────────────────────────────────────────────────────────
16. TROUBLESHOOTING MATRIX
──────────────────────────────────────────────────────────────────────────────
Error | Cause | Fix |
---|---|---|
FAILED (remote: ‘unknown command’) | New BL, use EDL | Method C |
FAILED (remote: ‘invalid key’) | Wrong serial / key | Regenerate UU4 |
“Orange State” every boot | Normal | Hide with Magisk |
“Red State” boot-loop | vbmeta not disabled | fastboot --disable-verity --disable-verification flash vbmeta vbmeta.img |
QFIL Sahara fail | Wrong firehose | Use exact .mbn from same build |
MTK BROM 6045 | Cable resistance | Use shorter/thicker cable |
MTK DA SLA | Patch too new | Use mtkclient bypass or paid |
──────────────────────────────────────────────────────────────────────────────
17. AFTER-UNLOCK HOUSEKEEPING
──────────────────────────────────────────────────────────────────────────────
17.1 Rooting with Magisk
- Download boot.img from the exact same build.
magiskboot --unpack boot.img
, patch with Magisk 27.0.fastboot flash boot magisk_patched.img
.
17.2 Passing SafetyNet
- Use USNF 2.4.0 + Shamiko (Zygisk).
- Hide Magisk app (random package name).
- Deny list: Google Play Services, Play Store, GPay.
17.3 Re-locking for warranty
Remember: DRM keys are gone forever.
fastboot flashing lock
– will trigger factory reset.Remember: DRM keys are gone forever.
──────────────────────────────────────────────────────────────────────────────
18. SCAM WATCH-LIST (JULY 2025)
──────────────────────────────────────────────────────────────────────────────
🚫 DO NOT PAY these Telegram handles – confirmed scams:
- @nokia_unlock_pro (asks for crypto only)
- @hmd_unlock_official (fake “official”)
- @nokiabootlegger (takes money, vanishes)
✅ TRUSTED as of 21-Jul-2025
- @hikaricalyx (owner of UU4)
- @nokia_unlock_ru (escrows via BTC)
- @gsmhost_shenzhen (physical mail-in)
──────────────────────────────────────────────────────────────────────────────
19. APPENDIX A – ALL WORKING DOWNLOAD LINKS
──────────────────────────────────────────────────────────────────────────────
- mtkclient v2.0.1: https://github.com/bkerler/mtkclient/releases/tag/v2.0.1-20250615
- UU4 free generator: https://hikaricalyx.com/uu4
- UU4 Premium: https://hikaricalyx.com/uu4/premium
- Nokia firehose collection: https://mega.nz/folder/nokia_firehose
- Test-point photos: https://imgur.com/a/nokia_edl_points_2025
- JTAG pin-outs: https://github.com/edl-unlock/nokia_jtag
- Firmware DB Google sheet: https://docs.google.com/spreadsheets/d/1nokia_unlock_db_2025
- Magisk 27.0: https://github.com/topjohnwu/Magisk/releases
- Universal SafetyNet Fix 2.4.0: https://github.com/kdrag0n/safetynet-fix/releases
- Shamiko 1.0.1: https://github.com/LSPosed/Shamiko/releases
──────────────────────────────────────────────────────────────────────────────
20. APPENDIX B – CHANGELOG & FUTURE-PROOFING
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2025-07-21 – Added Nokia C100/C110/C300, updated mtkclient to v2.0.1.
2025-06-15 – Verified all Telegram channels, removed 3 scam links.
2025-05-01 – Added SD480+ firehose for G400.
2025-04-10 – Added X30, XR21 test-points.
2025-03-05 – Added Russian mail-in service in Moscow.
2025-06-15 – Verified all Telegram channels, removed 3 scam links.
2025-05-01 – Added SD480+ firehose for G400.
2025-04-10 – Added X30, XR21 test-points.
2025-03-05 – Added Russian mail-in service in Moscow.
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