Daejeon, South Korea — Est. 2019

Preparing dormant hardware wallets for recovery, one device at a time

Portal Cedar Line helps holders of dormant Ledger, Trezor, and Coldcard devices prepare for recovery before funds become permanently inaccessible. We work from our Daejeon office with physical devices and backup materials — never remote access to your keys.

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Hardware wallet device on a wooden desk with recovery documentation
Ledger and Trezor units assessed in our Daejeon office before recovery preparation begins.

Flagship Consultation

Dormant Wallet Assessment

For holders who have not accessed a hardware wallet in years, our assessment session catalogues the device model, firmware generation, passphrase configuration, and backup material condition. We produce a written recovery readiness report you can act on independently or with a specialist.

Sessions run 90 minutes at our Seo-gu office. Bring the physical device, any steel or paper backups, and purchase records if available.

Full consultation details

Available on the Microsoft Store

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Further Consultations

Related preparation sessions

Dormant Wallet Assessment

Dormant Wallet Assessment

90 minutes · In-person, Daejeon office

A structured 90-minute session to catalogue your hardware wallet's condition, firmware state, passphrase layers, and backup material readiness.

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Multi-Device Inventory Session

Multi-Device Inventory Session

2 hours · In-person, Daejeon office

For households holding several hardware wallets across different brands, a two-hour session to map devices, firmware versions, and associated backup sets.

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Seed Phrase Documentation Review

Seed Phrase Documentation Review

60 minutes · In-person, Daejeon office

We verify the legibility, completeness, and storage condition of your BIP-39 backup materials without entering phrases into any device.

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From the field

What clients describe after their first visit

My Ledger Nano S had sat in a drawer since 2017. The assessment identified a passphrase layer I had forgotten entirely. The report was blunt about what I could verify myself and where I would need outside help.
— Min-jun K., Busan · Dormant Wallet Assessment
The documentation review caught an incomplete word on my steel plate rubbing. I appreciated that they did not rush me toward any particular recovery vendor — just a clear list of next steps.
— Sarah L., Seoul · Seed Phrase Documentation Review

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Field Notes

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