For people selling used phones

Sell with proof,
not promises.

A tamper-evident PDF certificate for every second-hand Android phone. 33 automated checks · GSMA blacklist · IMEI ↔ Model match · direct-read battery health — all in one QR-verifiable document, delivered in 30 seconds.

Try SM-S918B · Pixel 8 Pro · Redmi Note 13 · Galaxy S26 Ultra · sourced from Google's official supported-devices list, refreshed daily.
30 seconds per phone No cloud · reads over ADB PDF + QR certificate
IMEI 351247 •••••• 82
Battery SOH 91% · 937 cyc
GSMA ✓ Clean
Grade A · 180/180
Scanning · 33 checks · iqbotcert.probe.v4
43,984
Devices in the Google Play catalog — refreshed daily on the server, cached in the app.
33 checks
Automated integrity, hardware and security checks per scan — a full 7-page report.
30 sec
Plug in the phone, hit Scan, share the PDF. Median wall-clock time on a warm laptop.
100%
Publicly verifiable — every QR resolves against the IQBot Cert Authority record online.

Every question a buyer will ask, answered in one PDF.

The app doesn't guess. It reads the phone directly over ADB — battery fuel gauge, bootloader state, Samsung Knox warranty bit, verified boot, financing lock, GSMA blacklist. Every fact lives inside a QR-signed authority record.

Scan channelUSB · ADB · no cloud
Companion probeiqbotcert.probe.v4
Battery sourceBATTERY_PROPERTY_STATE_OF_HEALTH
Blacklist databaseGSMA · live
Catalog sourceGoogle Play · daily refresh
01 / Battery

Battery State of Health

Direct fuel-gauge SOH percentage, cycle count, and vendor telemetry (Samsung LLB CAL, ASOC, BSOH). Catches a worn battery even when the phone reports 100%.

02 / Locks

Financing & MDM locks

Google Device Lock Program, Samsung Knox Guard, PayJoy, corporate MDM enrollment — every known lease-lock agent detected before you hand over the phone.

03 / Identity

Authenticity & parts

Fourteen replica detectors — partition fingerprint, Verified Boot state, SoC-brand coherence, test-keys, first_api_level era. Catches clone MediaTek fakes.

04 / GSMA

GSMA blacklist check

15-digit IMEI cross-checked live against the GSMA global stolen/lost database. A blacklisted phone fails the certificate loudly, in the header.

05 / TAC

IMEI ↔ Model match

IMEI TAC decoded to the officially issued brand and model. Mismatch flags a swapped IMEI — the classic sandwich fraud, caught before the sale closes. Extended brand-specific enrichment (Samsung Knox Guard, warranty status, production date, factory carrier) is available for Samsung, Google Pixel, Huawei, Xiaomi/Redmi/POCO, Oppo/Realme/OnePlus, Honor and Motorola; other brands (Sony, Nokia, LG, HTC, Vivo, ZTE, ASUS and long-tail OEMs) receive core GSMA blacklist and TAC verification without brand-specific extras — the 33 local diagnostic checks and the full 7-page certificate are identical for every brand.

06 / Catalog

Google Play catalog

Runtime codename vs marketing model verified against Google's official 43,984-device catalog — refreshed daily on the server, cached in the app.

07 / Boot

Bootloader & encryption

Bootloader locked state, Verified Boot color, DM-verity mode, SELinux enforcing, FBE encryption — the ROM integrity signature the OS can't fake.

08 / Ship

QR-signed PDF

7-page premium certificate with masked IMEI, gold cover seal, and a QR that resolves to a live authority record. Edit the PDF — the QR stops matching.

The receipt your buyer cannot ignore.

A 7-page PDF: cover with grade badge inside a double gold ring, full hardware inventory, live GSMA record, battery chip-level data (Samsung LLB, ASOC, BSOH), 33 detailed checks — every fact linked to a QR-verified authority page at cert.iqbotbg.pro/c/<ref>.

CERTIFICATE OF
Diagnostic Examination
Samsung Galaxy S23 Ultra
Model SM-S918B · Codename dm3q
A
EXCELLENT
Result 180 / 180 · 100% · 33 OK
IQB-WB1R2TPA-202609102122
IQBot Cert Authority
Automated Diagnostic System
IB
Cover Security Identification GSMA Battery Hardware Annex §9 checks

Three steps · no tech skills.

From the phone in your hand to a QR-signed certificate ready to attach to any listing.

Plug in

Connect the phone over USB with Developer Mode + USB Debugging enabled. The app detects the device in under two seconds — no drivers, no accounts.

$ adb devices — waiting for R5CWB1R2TPA…

Scan

33 automated checks run in parallel: battery health from the fuel gauge, GSMA blacklist API, IMEI TAC decode, replica detectors, Samsung Knox warranty bit, Verified Boot.

33 checks · 180 / 180 · Grade A · 100%

Share

Generate the 7-page PDF and copy the QR link. Attach it to your listing — every buyer scans it and sees the live verification page.

cert.iqbotbg.pro/c/IQB-…

One-time, no subscription.

Buy the license once. Unlimited scans, unlimited certificates for the life of the license, one Windows machine.

Free demo
€0
Try before you buy — no card, no account.
  • Device detection over USB
  • Model, brand, RAM, storage, screen
  • Display refresh rate + resolution
  • Battery status + live temperature
  • PDF certificate locked
  • Online IMEI verification locked
Download free demo

Payment processed by Gumroad · Refund policy · License agreement

Ready when you are

Certify the next phone
you list in under a minute.

Try the demo free. Buy the PRO license once for 19€. Unlimited scans, unlimited certificates, offline QR verification for the life of the license.

Tamper-evident PDFEdit the file — the QR reveals the mismatch.
GSMA blacklist liveEvery IMEI checked before you sell.
Direct-read batteryFuel-gauge SOH — no guesses.