Keep the notebook open, sort removed parts by layer, preserve enough cash to finish the current order and buy a license or tool only when it unlocks the next blocked job. The professional screwdriver is broadly useful, but “buy it first” remains a recommendation—not an official rule.
Repair habits that prevent rework.
Read the notebook before touching the device
It identifies the required service, faulty parts and assembly sequence. Check it again when a placement stops working.
Sort parts by the layer they came from
Keep outer shell pieces separate from deep internals. Reassembly becomes a visible reverse path instead of a memory test.
Separate dirty, broken and reusable parts
A clean-looking shell does not complete a cleaning job if internal components remain marked.
Finish every part of the customer request
Repair, cleaning, painting and hacking are separate objectives. A working device can still be an incomplete order.
Protect the next repair from the last purchase.
The screwdriver is used across many devices, so launch-week guides commonly prioritize it. Buy it when repeated unscrewing is the real bottleneck, not by habit. Compare the full tool catalog.
Do not spend the entire balance on decoration or optional equipment when a current repair still needs a replacement component or license.
Marketplace devices can supply parts, but their condition makes the saving uncertain. Compare the required component with the complete purchase cost before committing.
Patch 1.0.013r rebalanced the marketplace. This guide therefore does not rank a “best device” or attach a permanent return-on-investment claim to passive upgrades.
Licenses are access, not decoration.
A license opens device families and manufacturer parts. Buy one when it unlocks a blocked customer, a useful parts source or the next stage of progression. Avoid buying several at once if the remaining cash cannot finish the first new repair. Use the 21-license cost ledger to protect your cash buffer.
What about cheats or codes?
No verified built-in cheat codes or console commands are documented in the official material checked for this page. Players looking for control over time or money should review the third-party ReStory mods page and back up their save first.
Sources and limits.
Exact prices and permanent profit rankings are intentionally excluded because the marketplace was rebalanced in 1.0.013r and no repeatable current-build dataset supports them.