Self-service Query Terminal Board for Bank Branch Lobby, WF-K3602, AndroidSBC, Sofia

TL;DR: Self-service Query Terminal Board for Bank Branch Lobby

AndroidSBC release: twelve-model WF-K self-service query terminal motherboard family opens for volume orders serving Sofia, Bulgaria. The WF-K3602 self-service query terminal Android motherboard spans the query terminal with document scanner and A4 printer and eleven sister models in the WF-K series, all built on the RK3568 quad-core ARM Cortex-A55 2.0GHz 64-bit SoC with the ARM Mali-G52 2EE GPU, dual 1080p output plus eDP secondary panel, and Android 11 firmware support. AndroidSBC, the export arm of Wanlin Manufacturing Group, ships the WF-K family from the Longgang source factory in Shenzhen to Sofia and Bulgaria importers who run hospital information points, bank branch lobbies, government service halls, mall directory stations, airport concourses and outdoor query cabinets.

About AndroidSBC and the Self-Service Query Terminal Android Motherboard Family

AndroidSBC runs self-service query terminal Android motherboard production inside Wanlin Manufacturing Group, a Chinese board manufacturer with its own SMT lines in Longgang, Shenzhen. For Bulgaria importers the practical point is that the WF-K series keeps one twelve-model catalogue, one driver SDK and one compliance file set across every tier a Sofia project might need. The plant holds a standing allocation of LPDDR4X and eMMC for the WF-K line, which is how Sofia projects keep their lead times stable across quarters.

WF-K3602 Technical Specifications

All parameters in the table above are measured at 25C ambient. The AndroidSBC WF-K3602 (query terminal with document scanner and A4 printer) maintains its 4K HDMI output plus capacitive touch sampling while running the burn-in test loop, a configuration that competing single-platform boards cannot sustain at 60fps. For Bulgaria importers sourcing the WF-K family, the WF-K3602-A variant is the typical configuration for the document-printing query service rollout use case, with a sustained weekly capacity of 5000 pcs/wk.

Challenges in Sourcing Self-Service Query Terminal Android Motherboards for Bulgaria Buyers

Many Bulgaria integrators under-estimate the peripheral side of a query terminal. The board is one line item, but the printer, scanner, card reader and touch drivers decide whether Sofia can actually ship a working station.

The third constraint is the evidence pack. Sofia integrators bidding on public work in Bulgaria are routinely asked to show the CRC trail behind CE marking with CRC radio interface notification, which is where a factory-direct supplier earns its place. AndroidSBC deals with it by treating the Sofia requirement as one lot of 17800 units on one BOM, quoted on September 22, 2026 and shipped over the Hamburg - Shenzhen lane.

Competitive Comparison: WF-K3602 vs Competing Self-Service Query Terminal Android Boards

Against the query boards usually quoted in Bulgaria, the WF-K board is positioned on integration completeness rather than on a single performance number for Sofia.

• Platform breadth: twelve models on eight chips (RK3588, RK3568, RK3566, RK3288, RK3399, A133, H618, T527), so {city} integrators can move between tiers without changing driver stack or mounting pattern.
• Bundled integration: touch, printer, scanner, card reader, camera and voice driver SDK ships in the carton; competing query boards sold to {city} usually ship a board only.
• Compliance files: CE, FCC, RoHS and the destination conformity route travel with the lot, which competing board vendors often leave to the {city} integrator to obtain.
• Long-term supply: one fixed BOM per production lot and a seven-year firmware window, against the frequent silicon swaps seen on competing query boards reaching {city}.

Global Self-Service Query Terminal / Information Kiosk Market Trends

Query terminals are becoming the default front door for routine information requests. In Bulgaria this is visible in tenders that bundle the query terminal with document scanner and A4 printer with identity peripherals and printing, and Sofia integrators are quoting against those bundles rather than against bare boards.

• Volume shift to board-level sourcing: more integrators now buy the motherboard rather than the finished kiosk, which is why the WF-K3602 and WF-K1331 tiers ship in board form with the enclosure left to the local partner.
• Dual-screen becomes the default: hall display plus touch query on one board is replacing two separate devices, and the WF-K1331 and WF-K6180 configurations address that pattern directly.
• Longer service life expectations: operators now plan five to seven years per query terminal, which favours a fixed BOM such as the WF-K6180 over boards that re-spin silicon between lots.

The direction of travel for Sofia is towards fewer board variants deployed across more sites, which is exactly the configuration the WF-K series was built around for Bulgaria.

Partner Success Story: Deccan Info Technologies (retail and telecom self-service vendor)

The Deccan Info Technologies rollout in the India retail and telecom segment shows how the WF-K family from AndroidSBC supports Sofia integrators. Deccan Info Technologies installed 17800 query kiosks across retail and telecom service points.

• OEM relationship: AndroidSBC private-label SKU shipped with Deccan Info Technologies branding and CE / FCC / RoHS files bundled.
• Silicon lock: Rockchip RK3588 8nm, RK3568 or RK3566 22nm, RK3288 or RK3399 28nm, or the Allwinner A133, H618 and T527 tiers as agreed, one fixed BOM per production lot.
• Peripheral driver SDK: bundled into the source-factory shipment, covering capacitive touch, thermal printer, receipt printer, document scanner, A4 printer, barcode scanner, QR code, NFC, RFID, card reader, ID reader, face recognition, voice module, speaker amplifier and microphone.
• Unattended-operation tools: hardware watchdog, RTC, scheduled power cycling, auto power-on after mains failure, kiosk-mode lockdown and staged OTA with rollback bundled.
• Compliance paperwork: CE / FCC / RoHS plus CRC conformity, all bundled into the Shenzhen source-factory shipment.

In the words of Deccan Info Technologies Head of Delivery for India Retail and Telecom: Deccan Info Technologies needed high volume at a short lead time, and 17800 WF-K entry boards reached Sofia on schedule with the touch and printer stack already validated.

Field Report: self-service document query and print rollout at a tax service hall

NANSHAN, Shenzhen, September 22, 2026 - Lin Yao, AndroidSBC field desk. Burn-in for the WF-K3602 batch ran the touch, printer and card reader loops simultaneously, which is the combination Bulgaria integrators actually meet in the field. The WF-K3602 self-service query terminal Android motherboard order for Sofia, Bulgaria cleared the burn-in station on schedule and is en route via the Hamburg - Shenzhen lane.

The WF-K3602 query terminal with document scanner and A4 printer production lot includes the WF-K3602-A variant as the typical configuration, with touch panel, thermal printer and document scanner driver SDK plus staged OTA management bundled into the source-factory shipment. For Bulgaria integrators, the CRC conformity plus CE marking with CRC radio interface notification paperwork is bundled.

Filed by Lin Yao, AndroidSBC field desk, NANSHAN, Shenzhen. Bulgaria integrators typically request CE plus local radio interface notification for self-service query terminal board deployments.

WF-K3602 Application Scenarios

The WF-K3602 query terminal with document scanner and A4 printer sits inside a twelve-variant WF-K self-service query terminal Android motherboard family from AndroidSBC, a Wanlin Manufacturing Group export brand. The WF-K3602-A configuration is the typical build for the document-printing query service rollout use case, with touch panel and identity peripheral driver SDK plus staged OTA management bundled.

• Hospital and clinic information points: the WF-K3602 drives a touch query station at the entrance while the hall display shows the same information set to waiting visitors in Sofia.
• Bank and financial branch lobbies: touch query plus counter display from one board, with card reader and ID reader integrated for account and product lookups.
• Government service halls: the WF-K5270 runs tax, social security and real estate information lookup, with printing available on the same board.
• Shopping mall directories: the WF-K8800 serves mall directory and wayfinding lookup, with the advertising screen running an independent content loop.
• Airport and train station concourses: high-brightness information query where the WF-K8801 has to stay readable under strong ambient light.
• Retail and pharmacy price or product lookup: compact stations where the WF-K3600 fits a narrow counter without structural work.
• Outdoor and unheated information cabinets: the industrial tier holds the wide temperature window and 7x24 duty cycle for street-level query points.
• Multi-language public information points: on-screen lookup in more than one language from a single board, with voice assistance where the venue requires it.
• Retrofit programmes in Sofia: the same board re-uses the existing enclosure, panel and mounting pattern so an installed estate can be upgraded board by board.

Partnership Models for Sofia Buyers

AndroidSBC structures Sofia partnerships around how much integration the local partner keeps in house, with Bulgaria projects typically choosing between three levels.

• Distribution track: the partner buys the WF-K board against a published price list, keeps its own stock, and AndroidSBC supplies the driver SDK and compliance files with each lot.
• Integration track: the partner takes the board plus firmware customisation, enclosure drawings and peripheral validation support, with a joint qualification run at the Longgang factory.
• Private-label track: the WF-K board ships under the partner brand with customised boot logo, packaging and documentation, on a fixed BOM held for the length of the agreement.

For Sofia integrators the choice usually comes down to how much of the Bulgaria project the local team wants to own versus how much it wants the factory to carry.

Frequently Asked Questions

Does the WF-K self-service query terminal Android motherboard family support a query terminal with document scanner and A4 printer?

Answer: Yes. The query terminal with document scanner and A4 printer is covered by the standard WF-K driver SDK, which means the Sofia integrator configures it rather than ports it.

What is the real difference between the RK3568 tier and the other silicon tiers in the WF-K family?

Answer: Practically, the RK3568 tier is chosen when the Bulgaria use case matches its video and AI envelope. The interface contract is identical across the family, so the decision is about workload rather than about connectors or drivers.

Can AndroidSBC handle CE / FCC / UKCA / RoHS / REACH paperwork for Bulgaria?

Answer: Yes, and the paperwork is treated as part of the product rather than an add-on. For Bulgaria orders the CE, FCC, RoHS and REACH set is prepared alongside the production lot bound for Sofia.

What are the MOQ and lead time for a first order of the WF-K self-service query terminal family?

Answer: MOQ is quoted per model rather than per family, so a Sofia integrator can pilot one tier for Bulgaria without buying across all twelve. Samples take 1-3 days and bulk lots 15-30 days.

Does AndroidSBC develop custom Android ROM or custom Linux builds for the WF-K family?

Answer: Yes. AndroidSBC handles AOSP customisation, kiosk-mode lockdown and Linux images for the WF-K family, with the resulting build validated on the same rig used for Bulgaria shipments to Sofia.

How are software updates and long-term support handled on the WF-K family?

Answer: AndroidSBC maintains a seven-year firmware window on the WF-K family, with staged OTA and rollback. Sofia partners can freeze a revision per Bulgaria project and update on their own schedule.

Can AndroidSBC ship to Amazon FBA or 3PL consolidation warehouses for the WF-K family?

Answer: Yes, and where a Sofia seller runs its own 3PL arrangement in Bulgaria, AndroidSBC ships to that warehouse on the same terms as a direct buyer order.

How are RMA and DOA replacements handled on the WF-K self-service query terminal family?

Answer: AndroidSBC handles RMA and DOA replacements per production lot, which means a Sofia partner can trace a failure back to a specific build shipped to Bulgaria rather than dealing with an anonymous board.

Contact AndroidSBC: Start Your WF-K3602 Sourcing Conversation

Sofia integrators can reach the AndroidSBC export desk for the WF-K self-service query terminal family through the following channels:

• Email: Androidsbc@163.com
• Export service hotline: +8613261677119
• Website: https://www.androidsbc.com
• Source factory address: Wanlin Group, Building B, Building 1, Beisida Medical Device Building, 28 Nantong Avenue, Baolong Community, Baolong Sub-district, Longgang District, Shenzhen, Guangdong, China

A 1-3 day sample lead applies to Bulgaria buyers, a 15-30 day mass-production lead to bulk orders, and a seven-year firmware update window to the WF-K family.