Professional in-depth phone and electronic data analysis and extraction in Zhengzhou
In today's networked, information-driven society, instant-messaging history, database caches, browsing history and location data stored on smartphones and computer disks have become the most direct evidence in contract disputes, labour disputes, cyber-related offences and trade-secret cases. Fengniu Tech has compliant electronic data inspection technology. We operate a professional mobile-device deep-extraction system built on our in-house Fengniu Data Parsing Tool (supporting encrypted backup extraction, low-level system parsing, chip-level reads of the deep databases used by mainstream chat apps, and multi-dimensional auditing of app usage records and behavioural traces). For difficult, deliberately wiped or badly damaged devices we carry out multiple layers of logical and physical extraction to reconstruct what happened and preserve the integrity of the key data.
Multi-dimensional deep extraction scenarios
Reassembling fragments from social and chat apps
Our in-house Fengniu Data Parsing Tool scans and reconstructs the SQLite layer in depth, using proprietary fragment-reassembly and physical-splicing algorithms to recover chat and social records that are invisible or have been cleaned up. Together with the 04_behaviour analysis module it provides detailed behavioural-trace analysis of usage records from browsers, e-commerce, maps, payment, audio/video and AI apps.
Physical chip extraction from smashed and liquid-damaged phones
For devices that are badly deformed, heavily water-damaged or have burned motherboard traces and will not power on, ordinary software can no longer read anything. Our hardware lab uses difficult micro-soldering removal techniques to lift the flash memory chip next to the CPU and read a physical image of it, forcibly recovering the key data.
Audio recording and media integrity comparison
We extract key recordings, notes and call logs from the submitted device, along with the original audio file metadata. Waveform analysis and compression-distortion checks then verify whether the audio in question has been spliced, edited or altered with AI voice cloning, giving you solid original-data support.
Objective inspection statement
We document the extraction and analysis workflow in detail, together with SHA-256 integrity signatures, read-only device usage and the reasoning behind the results, and issue a stamped analysis report that meets the requirements of China's civil and criminal procedure law - objective technical evidence for commercial disputes, internal audits or rights protection.
Standardised electronic data inspection process
1. Sealing and confidentiality
Seal the physical condition of the submitted material
Sign a high-level confidentiality (NDA) agreement
2. Read-only imaging
Connect a hardware write blocker
Clone a read-only physical image of the media
3. Logical analysis
Search with our in-house scanning and analysis software
Low-level physical and logical data extraction
4. Delivery and physical destruction
Deliver a stamped analysis report
Clear all local inspection traces within 24 hours
Strict technical safeguards and strong privacy guarantees
Pay-for-results principle: Fengniu Tech is committed to results-driven service, so the initial physical and system inspection is completely free. We work on a no result, no labour charge basis: if the data we extract does not materially help your chain of evidence, we waive the entire technical analysis fee (except for base materials such as dedicated chips or boards that were consumed and cannot be removed or reused after heavy physical board repair).
Privacy firewall: Core privacy and trade secrets are a line we never cross. Fengniu Tech signs a legally binding confidentiality agreement (NDA) with the client before any project starts. We maintain a separate hardware data isolation room that is purely local and cut off from external networks. Once the analysis results and data have been delivered successfully, within 24 hours we run secure overwrite routines to permanently and irreversibly destroy, at the physical level, every intermediate comparison dataset and image file kept on our local servers - no copy is ever retained.
Frequently Asked Questions (FAQ)
There is a very high chance. Mainstream chat apps store their messaging data in deep, encrypted system databases, and pressing delete, clear or even some recall actions in the interface usually just flags the data as hidden - the data blocks remain as fragments in freeblocks or unallocated space in the underlying database. As long as they have not been overwritten by a large amount of new data, our in-house deep database scanning and parsing tools can extract those fragments and reassemble them.
When a phone involved in a case is badly physically damaged, water-damaged, or its motherboard has burned out so that it will neither power on nor connect, ordinary forensic software cannot read it. We then use precision micro-soldering to lift the flash memory chip (eMMC/UFS) off the board and read its low-level physical image directly with a high-frequency programmer - a difficult hard forensics procedure.
We strictly follow a pay-for-results principle. The initial inspection is free, and before extraction begins we agree with you on exactly what data should be recovered. If we cannot extract valid data beyond the state in which the device arrived, no technical service fee is charged (only the cost of dedicated physical consumables consumed by hard repair and not recoverable).
Because the underlying security mechanisms and storage methods differ, there are some differences. On an iPhone (iOS), even after the chat app is uninstalled, unallocated space and SQLite free pages usually still allow a good recovery rate until large-scale overwriting occurs. Most modern Android phones, however, enable full-disk encryption (FBE) and Trim by default: once the chat app is uninstalled or the phone is factory reset, the underlying keys are erased and recovery becomes extremely difficult. So if data is lost, switch the phone to airplane mode immediately, avoid any network transfer or new data writes, and bring it to us as soon as possible.
Simple image collages are easy to spot by eye or with photo-editing software, but for high-fidelity screenshots created with third-party synthesis tools we do two things. First, we forensically examine the image file's Exif metadata, quantisation tables and compression characteristics for signs of re-editing and re-saving. More conclusively, we perform physical forensics on the sender's or recipient's phone, extract the local encrypted SQLite database of the chat app, and verify authenticity against the actual message streams, message IDs (MsgID) and timestamps (CreateTime) stored there. Low-level database records are very hard to fake with photo editing, so we verify authenticity against the underlying database fields.
