# Zhsunyco\-213\-4\-BLE [DecompHub listing]() ยท [JSON record]() ## Description > Reverse\-engineering notes for Zhsunyco 213\-4\-BLE electronic shelf labels \(ESL\), sold under the WoLink / WoPda brand and also as generic "2\.13\-inch BWRY BLE price tag" on marketplaces\. Everything below was recovered by decompiling the vendor's Flutter app, proxying its HTTPS traffic, and probing a live tag\. - Category: hardware - Work types: reverse\-engineering - Targets: Zhsunyco 213\-4\-BLE - Project status: unknown - Listing updated: 2026\-10\-07T04:18:20\.526Z - Listing first published: 2026\-10\-07T04:18:20\.526Z ## Repository - Repository: [crbaman2/zhsunyco\-213\-4\-ble]() - License: Not specified - Repository stars: 0 - Stars checked: 2026\-10\-07T03:08:36\.777Z - Repository metadata checked: 2026\-10\-07T03:08:36\.777Z ## Progress Each value describes only its stated scope. An observation date is when DecompHub read the source; it is not a publisher measurement date. No sourced numeric progress is currently reported. This is unknown progress, not 0%. ## Contributing - Contribution status: unknown - Help requested: Not reported - Contribution instructions: Not reported - Contribution source: Not reported - Contribution information checked: Not reported - AI contribution policy: unspecified - AI policy source: Not reported ## Listing sources - [Public repository metadata]() - [Discovery query]() ## Data notes Descriptions remain in their recorded source language. Missing values are not inferred. Repository licensing is upstream metadata; this export does not grant rights to upstream code or assets. Schema version: 1. [Public data documentation]().