# Ackites/Nrfr

🌍 免 Root 的 SIM 卡国家码修改工具 | 解决国际漫游时的兼容性问题，帮助使用海外 SIM 卡获得更好的本地化体验，解锁运营商限制，突破区域限制

Repository: https://github.com/Ackites/Nrfr
Canonical: https://ross.abutalabs.com/products/nrfr
Homepage: https://x.com/intent/follow?screen_name=actkites
Language: Kotlin
License: Apache-2.0
License Family: permissive
Last push: 2025-07-16T01:08:53+00:00

## Health v2 (maintenance only)
Score: 37/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 31, release rhythm 40, longevity 43
- inputs: {"age_days": 609, "days_push": 414, "days_rel": 605, "gap_med": 0, "n_releases_24m": 4}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 8733, forks 645 (observed 2026-08-28T04:10:24.458143+00:00)

## What it is
Nrfr is a root-free Android tool that changes the SIM card country code by calling native system APIs (CarrierConfigLoader) with Shizuku permission support. It helps fix carrier configuration mismatches, roaming compatibility issues, and region-locked apps like TikTok and Samsung Health.

## Use cases
- change SIM country code without root
- fix TikTok region restriction errors
- pass Samsung Health SIM region check
- fix carrier config mismatch while roaming abroad
- make an overseas SIM card behave like a local one
- unlock carrier-specific features on Android
- fix apps detecting the wrong SIM region

## When to choose
- you need to change SIM country code on Android without root or Xposed/Magisk
- you have Shizuku set up and want a reversible, system-API-based solution
- you need per-SIM (dual SIM) country code configuration that survives reboot

## When to avoid
- you cannot or do not want to install Shizuku
- you need to actually rewrite the SIM card itself
- you are on a non-Android platform or Android below 8

## Facets
- artifact type: application
- maturity: active
- function: security, developer-tools, gui
- domain: android-tools, privacy, networking
- platform: -
- tags: sim-card, country-code, shizuku, no-root, carrier-config, roaming, kotlin, android, mobile

## Member repositories
- Ackites/Nrfr (main) score 37

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:10:24.458143+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T17:25:18.948820+00:00, confidence not recorded.
  - readme: https://github.com/Ackites/Nrfr (fetched 2026-08-28T04:10:24.458143+00:00, sha 251c4453c969)
- Data as of 2026-08-30T08:39:29.467469+00:00.